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  1. #1
    Established Member Two Rings
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    Powering Radar Detector in 2015 S7 using a Mirrortap

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    Using the wiring harness in your autodimming mirror is yet another way to power your radar detector. A-Pillar/Fuse panel route and Homelink are two other popular methods.

    I prefer using Mirrortap with a Blendmount for what I think is the cleanest install possible. It's also fairly easy and straightforward. No wires need to be spliced and no panels need to be removed (other than the tiny plastic covering pieces). The one short, thin Mirrortap cable is almost completely hidden behind the rear view mirror. While I used a Blendmount, it should work with other mounting solutions equally well. If you are going to hang it from your visor or windshield you will likely need a slightly longer cable length, which Mirrortap does have available.

    I used a Audi-004 Blendmount mount and 12 inch Mirrortap Microtap, which has slightly thinner (.05 vs .08 I think) pins which you will need to wedge into the Molex connector plug wiring harness. You need to find the 12v wire and ground wire in the harness. You will wedge the red mirrortap pin into the 12v and the black pin into the ground. I show it in the following photos from my own installation but if you are not sure use a multimeter.

    As I indicated, I used a microtap but Mirrortap recommends a regular size Mirrortap (.08 I think ) for Audi vehicles. My Infinity m35x was a real PITA to get the pins into so I wanted the smaller microptap pins for my S7. I would stick to the regular Mirrortap size as my microtap was initially a bit loose. But I was able to snugly fit it in without a problem by wedging the pins into a different corner of the respective ground and 12v connector stalls.

    See cautionary disclaimer at end of this post.



    Step 1:

    Remove plastic trim cover to expose wire harness. Slide it backward slightly so you can see the front lip detach from the middle piece of plastic trim. Then wiggle, pull, back and forth and it will eventually let go. The connector points don't appear designed to hold it too tight. At this point you can also wiggle off the smaller middle piece of plastic trim.





    Step 2:

    With ignition and power to the mirror off, detach lower wiring harness from mirror. Mine was snug and I had to use a bit of force but it came off without a problem. There is a tiny release pin which you push up on to allow the wiring harness to come free. I used the tip of one of my multimeter probes to push it in.






    Step 3: Locate the 12 v and Ground wires in the freed harness. Use a multimeter to confirm the 12v and ground if you are not certain.






    Step 4: Wedge the pins into the respective wire "stalls" of the aforementioned 12V and Ground wires. My wiring harness 12 V lead was the black and red wire and the ground was the brown wire next to it. I also had a second ground wire (per my multimeter testing)- the black wire third in line. So it went black/red (12v)-brown (ground)- black ( 2nd ground)- and purple wire, in that order. At this point I turned on the ignition and confirmed there was power by connecting my RD. See photo below.







    Step 5: Tuck the Mirrortap cable under the middle smaller plastic trim piece such that it comes out at 12 O'Clock where the stem of the mirror attachment exits the plastic trim. This serves to not only hide the cable behind the mirror but it also anchors the slack inside the wiring harness box and doesn't require any drilling of holes or alteration of the plastic trim pieces to allow the cable to exit the wiring harness cover.








    Step 6: Attach remaining larger plastic trim cover, attach your RD and plug it in, and use a plastic zip tie around the Blendmount to gather the slack in the Mirrortap cable and you are done.http://www.audizine.com/forum/images/smilies/smile.gif








    Caution: I am not an electrician or a car mechanic. I am not affiliated with Mirrortap or Blendmount in any way. This is simply how I installed my Mirrortap in my 2015 Audi S7. Please see the Mirrortap instructions that come with your Mirrortap and read them carefully before attempting installation and see the warnings and disclaimers on the Mirrortap brochure/directions. If you are unsure of the Ground and 12V plug indentity, use a multimeter. I make no representation that the wiring of your rearview mirror is the same as mine. The above installation outline is simply a demonstration of how I installed my own RD with a Mirrortap. If you are still uncertain about the installation in any way have a qualified installer do the installation for you.
    Last edited by NPKR; 08-26-2014 at 06:07 PM.

  2. #2
    Senior Member Four Rings Silverarrow240's Avatar
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    Great walk through!!!! Thanks so much!

    I will be attempting this soon, or else me thinks I'll go broke from future speeding tickets!!
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  3. #3
    Veteran Member Four Rings
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    i found the install using homelink has shorter cable showing and much less intrusive for location imo.
    2016 RS7

  4. #4
    Established Member Two Rings
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    Nothing wrong with wiring through Homelink. I just didn't want to see the power cable exit the headliner in front of the mirror...too visible for me.

    Sent from my SAMSUNG-SM-G900A using Tapatalk

  5. #5
    Active Member Two Rings
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    And this is easily reversible (i.e. you can plug the Mirrortap in and out if you need to bring the car in for service)?

  6. #6
    Veteran Member Four Rings
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    Quote Originally Posted by NPKR View Post
    Nothing wrong with wiring through Homelink. I just didn't want to see the power cable exit the headliner in front of the mirror...too visible for me.

    Sent from my SAMSUNG-SM-G900A using Tapatalk
    cable exits from headliner above the mirror. have my detector and camera installed in that location above the mirror so they don't interfere with visibility.
    2016 RS7

  7. #7
    Established Member Two Rings
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    The benefit of the Mirrortap is that there is no visible cable- it's all hidden behind the mirror.

    Probably more important is the optimal position of the RD just below the rearview mirror for rearward radar detection of sources behind your car. With your detector mounted up high above the mirror or to the side of the mirror sensitivity to radar coming from behind is greatly reduced. This has been shown in testing and makes intuitive sense.
    But to each his own....both methods will work :)

    And yes it is reversible....although I don't think I would bother doing so before bringing in for service.

    Sent from my SAMSUNG-SM-G900A using Tapatalk

  8. #8
    Active Member One Ring
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    Great job ... thanks for posting the pictures, and the step-by-step. Much cleaner than the a-pillar cable run. Will try Saturday or Sunday when I am home from vacation. Glad I didn't send back the Mirrortap.

    Thanks, too, for pointing me over here from AudiWorld!

  9. #9
    Established Member Two Rings
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    Quote Originally Posted by Silverarrow240 View Post
    Great walk through!!!! Thanks so much!

    I will be attempting this soon, or else me thinks I'll go broke from future speeding tickets!!
    Quote Originally Posted by bjterp00 View Post
    Great job ... thanks for posting the pictures, and the step-by-step. Much cleaner than the a-pillar cable run. Will try Saturday or Sunday when I am home from vacation. Glad I didn't send back the Mirrortap.

    Thanks, too, for pointing me over here from AudiWorld!
    Your welcome. Hope it helps. If during your own installations you find a way to improve on the install please feel free to add to this post.

  10. #10
    Established Member Two Rings PB4UGO's Avatar
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    Great post!!! Thank you!!!

  11. #11
    Veteran Member Three Rings soslower's Avatar
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    Super clean install. I'm trying to tap into some wires for my headlights. Was thinking of going to the fuse box

  12. #12
    Active Member One Ring
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    Just did mine tonight following NPKR's instructions ... worked perfectly! No comments to improve other than just noting that it is a little worrisome to tug so hard not the trim to pull it off, but no problems at all!

  13. #13
    Active Member Two Rings
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    How thick is the cable? My A6 mirror housing is different but there is a 1/8" gap between the headliner and mirror cover where the wire might be able to squeak through.

  14. #14
    Established Member Two Rings
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    Not sure what the A7 mirror cover looks like but the installation will have a cleaner appearance if you have the cable exit on the windshield side of the mirror (behind the mirror) rather than btwn the cover and headliner which would leave cable visible in front of the mirror, at least in the S7.

    Sent from my SAMSUNG-SM-G900A using Tapatalk

  15. #15
    Established Member Two Rings
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    Quote Originally Posted by KmanA6 View Post
    How thick is the cable? My A6 mirror housing is different but there is a 1/8" gap between the headliner and mirror cover where the wire might be able to squeak through.

    Quote Originally Posted by NPKR View Post
    Not sure what the A6 mirror cover looks like but the installation will have a cleaner appearance if you have the cable exit on the windshield side of the mirror (behind the mirror) rather than btwn the cover and headliner which would leave cable visible in front of the mirror, at least in the S7.

    Sent from my SAMSUNG-SM-G900A using Tapatalk


    Sent from my SAMSUNG-SM-G900A using Tapatalk

  16. #16
    Active Member Two Rings niklasios's Avatar
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    Great post. Just did it on my RS7, looks amazing.

  17. #17
    Senior Member Three Rings JoeCaMotto's Avatar
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    Quote Originally Posted by PB4UGO View Post
    Great post!!! Thank you!!!
    +1, Thanks
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  18. #18
    Senior Member Two Rings
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    Great write up! Just installed mine over the weekend. FWIW, the wires in my 16 S6 were the exact same as yours.
    2016 S6, Daytona Gray Pearl, Prestige, Black Optics Package, Sport Package, Driver Assistance, Cold weather package, Black Headliner, Bose, Rubber mats, 20% tint, clear bra, Eurocode Sways, Links, Alu Kruez, Roc Euro Intake, VagCom, 034 Tranny Mount

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  19. #19
    Established Member Two Rings AnTarbh's Avatar
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    Quote Originally Posted by AstleyJ View Post
    Great write up! Just installed mine over the weekend. FWIW, the wires in my 16 S6 were the exact same as yours.
    Can you show some pictures of your configuration? How big of an impact is it in your visibility?
    2016 S6 Goodwood Green Pearl
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  20. #20
    Senior Member Three Rings ak_siberian's Avatar
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    Which Blendmount model did you get as there seem to be several. TIA

    siberian
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  21. #21
    Senior Member Three Rings kouzman's Avatar
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    Quote Originally Posted by ak_siberian View Post
    Which Blendmount model did you get as there seem to be several. TIA

    siberian
    +1 one on this! I just want to be certain before I order. thanks!
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  22. #22
    Active Member One Ring
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    This is my first post here, having just acquired a 2014 A7 Prestige. I can't live without my V1 and this will be my first mod. Thank you so much for posting this and including the pics

  23. #23
    Active Member Two Rings
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    Doing this soon on to be delivered '16 S6 - thanks, great write-up.

  24. #24
    Established Member Two Rings Phoneboy's Avatar
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    I have the blend mount and mirror tap for my 2013 a7 and love it. I had it in my s5 previously and had it moved. Would not use anything else.


    Sent from my iPhone using Audizine mobile app

  25. #25
    Veteran Member Four Rings
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    Quote Originally Posted by kouzman View Post
    +1 one on this! I just want to be certain before I order. thanks!
    I got this one for the RS7 and it's perfect. Love it.
    https://store.blendmount.com/blendmo...ies-p2021.aspx

  26. #26
    Active Member One Ring TallMartin's Avatar
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    GREAT POST! I've been looking for instructions on how to wire my Valentine V1 into my 2016 S6.

    Quick question: does your car have the auto stop / start (i.e. when the car is in Comfort mode, the engine will stop at stoplights, ect, and restart when you take your foot off the brake)? If so, does it maintain power to your detector when this happens? I'm currently using the cigarette lighter in the armrest, and the engine restart causes power to dip to the point that the detector restarts (resetting the bluetooth connection to my phone). Mildly annoying...
    Last edited by TallMartin; 01-25-2016 at 01:57 PM.
    2016 Audi S6
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  27. #27
    Established Member Two Rings
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    Quote Originally Posted by TallMartin View Post
    GREAT POST! I've been looking for instructions on how to wire my Valentine V1 into my 2016 S6.

    Quick question: does your car have the auto stop / start (i.e. when the car is in Comfort mode, the engine will stop at stoplights, ect, and restart when you take your foot off the brake)? If so, does it maintain power to your detector when this happens? I'm currently using the cigarette lighter in the armrest, and the engine restart causes power to dip to the point that the detector restarts (resetting the bluetooth connection to my phone). Mildly annoying...
    My S7 doesn't have auto stop/start so i can't say anything myself about your problem. However, I have seen other posts which directly address your problem on Audiworld. Valentine ( i think its Valentine) sells a tiny unit for $25 that you plug in-line with your radar detector cat-5 plug and it alleviates the restart with engine shutting down.

  28. #28
    Active Member Two Rings
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    Thanks very helpful. I just did the install on my 2016 S6, all relatively similar. If anyone has specific questions
    about the S6, pm me.

  29. #29
    Established Member Two Rings
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    Thanks for the write up. I just did this on my 16 S6 prestige as well as my wife's 16 A6 Premium plus. The wiring was same on both Black/red was + and brown next to it was Gnd -. Thanks again was super easy to hook up the Escort 9500ix.

    One step I skipped was disconnecting the connector. I just placed the mirror tap pins and zip tied to the harness wires. Just verified with multimeter first.

    Also if you something powered constantly it's the yellow/red wire it's the + and the brown next to it as the Gnd - on the secondary harness.

  30. #30
    Active Member Two Rings
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    Nice work OP. Did you install the Escort mute button in the car somewhere?

  31. #31
    Established Member Two Rings 13_C7_SC's Avatar
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    So I did this install using the mirror tap and blend mount, and it works great. Yesterday I installed LED reverse lights, and now my radar doesn't get powered on anymore by my mirrortap.
    Has anyone had this issue happen to them?

    Sent from my Nexus 6 using Tapatalk

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