A4 Stereo Information Thread

[jimmyma]

i would like to know what that wire with the brown plug does. i've ordered a touchscreen system and will be installing it this weekend. took my bose symphony out and couldn't figure out that wire with the brown plug

[dummptyhummpty]

i would like to know what that wire with the brown plug does. i've ordered a touchscreen system and will be installing it this weekend. took my bose symphony out and couldn't figure out that wire with the brown plug

Can you take a picture? It might be the ground. There should be a wire diagram on your radio.

[jimmyma]

I found a picture from one of the links earlier on this page. The picture says that this is a diversity antenna plug. I'm not sure how to integrate this into my pioneer avh p4000dvd that i want to install

[jimmyma]

here is the link to the picture
http://public.fotki.com/Avanteix/aud...o_rnsd-79.html

[dummptyhummpty]

here is the link to the picture
http://public.fotki.com/Avanteix/aud...o_rnsd-79.html

Ah, that. I didn't connect it during my install. I'm not sure if it's needed. You could check http://www.enfigcarstereo.com/ to see if they have an adapter of some type. I'm pretty sure you don't need it though.

[LavaSurfer]

I didn't connect that also during my install. Although you can get an adapter to connect it to your head unit. I will tell you that I have the AM/FM ant. stated in the above link plugged up, and the radio reception sucks compared to the stock radio. I then got an adapter for that other plug and it made no difference. I'm thinking it's some sort of powered antenna. I'm not all too worried about since I have sat radio though....but it would be nice if I could figure it out.

[ILikeBigBrakes]

I need some help if anyone can..... I had an Alpine double din installed in my car and I know that one or two wires were re-pinned to work with the features of the Alpine. Does anyone have a picture of what the stock harnesses are supposed to look like possibly?

[dummptyhummpty]

I didn't connect that also during my install. Although you can get an adapter to connect it to your head unit. I will tell you that I have the AM/FM ant. stated in the above link plugged up, and the radio reception sucks compared to the stock radio. I then got an adapter for that other plug and it made no difference. I'm thinking it's some sort of powered antenna. I'm not all too worried about since I have sat radio though....but it would be nice if I could figure it out.

Supposedly, there is some kind of amplified antenna adapter. It's similar to the one you probably have, but it accepts 12v+. Like you, I mostly listened to XM so I didn't care too much about my FM reception.

[jbrentd]

I didn't connect that also during my install. Although you can get an adapter to connect it to your head unit. I will tell you that I have the AM/FM ant. stated in the above link plugged up, and the radio reception sucks compared to the stock radio. I then got an adapter for that other plug and it made no difference. I'm thinking it's some sort of powered antenna. I'm not all too worried about since I have sat radio though....but it would be nice if I could figure it out.

When I bought my AVIC-D3, I received this


but returned it for this (crutchfield #12040VW54)

[LavaSurfer]

That's interesting. I just might order that and give it a try. After installing this did your AM/FM reception return to as well as with the factory radio? Even back in my car stereo installer days I noticed that a factory radio would almost ALWAYS have better reception than an aftermarket.

[jbrentd]

Yes. With the first one, the reception was horrible.

[jimmyma]

So i finally had a day off to install that dvd player in my car today. I had an easy time with it because the harness i got was outfitted with RCA inputs that i just plugged into the back of my head unit. The antenna adapter that i got wasn't amplified and the reception was horrible, just like you guys had problems with. I've got the player in the car, but i'm wondering what you guys used for the dash trim piece?

[jbrentd]

The kit I got from crutchfield came with what you see here.

[phsingl]

I've got hold of the in-glovebox Ipod adapter and wanted to hook it up to my Symphony II, but I already have Sirius and from what I've read there's a splitter required as they both use the same input in the back of the Symphony.

Earlier in this thread it suggests "nsx jr" makes such a splitter - but a review of his site suggests he may no longer do so. Are there other sources?

[LavaSurfer]

Thought I would add this to the thread since I didn't notice it in here already. Figure this is the best place for the Directwire diagram.....

DIRECTWIRE™ WIRING INFORMATION - AUDI / A4 / 2003 / Remote Start


[PRINT THIS PAGE]


12volts red (x2)(common 150A) + ignition harness
Starter red/black + ignition harness
Second Starter blue or red/black + ignition harness
Ignition black + ignition harness
Second Ignition N/A
Third Ignition N/A
Accessory yellow/black + ignition harness
Second Accessory N/A
Keysense red + ignition harness
Power Lock blue/white - driver door module in door
Power Unlock purple/green (double pulse) - driver door module in door
Lock Motor brown/blue or gray/blue 5wi driver door module in door
Unlock Motor gray/green 5wi driver door module in door
Parking Lights+ gray + headlight switch
Notes: May have to interrupt the purple wire at the headlight switch in order for the lights to work.
Parking Lights- N/A
Hazards red/yellow - hazard light switch
Turn Signal(L) black/blue (F), green/blue (R) + vehicle electrical system ctrl mod
Notes: The vehicle electrical system control module is under the driver side dash.
Turn Signal(R) green/blk (F), yellow/grn (R) + vehicle electrical system ctrl mod
Notes: The vehicle electrical system control module is under the driver side dash.
Reverse Light blue/red + CCM, conn 3, pin 7
Notes: The CCM (Central Control Module for comfort system) is mounted on the floorpan in a protective box, under the carpet in front of the driver seat.
Door Trigger use dome supervision wire
Dome Supervision brown/white - CCM, conn 1, pin 2
Notes: The CCM (Central Control Module for comfort system) is mounted on the floorpan in a protective box, under the carpet in front of the driver seat.
Trunk/Hatch Pin white/yellow - CCM, conn 5, pin 11
Notes: The CCM (Central Control Module for comfort system) is mounted on the floorpan in a protective box, under the carpet in front of the driver seat.
Hood Pin brown/purple - CCM, conn 4, pin 20
Notes: The CCM (Central Control Module for comfort system) is mounted on the floorpan in a protective box, under the carpet in front of the driver seat.
Trunk/Hatch Release yellow/red 5wi CCM, conn 1, pin 6
Notes: The CCM (Central Control Module for comfort system) is mounted on the floorpan in a protective box, under the carpet in front of the driver seat.
Power Sliding Door N/A
Factory Alarm Arm arms with lock
Factory Alarm Disarm disarms with unlock
Disarm No Unlock
Tachometer NOT red/blue or black/blue ac any fuel injector
Wait to start N/A
Brake Wire red/black + brake pedal switch
Parking Brake brown/white - CCM, conn 3, pin 2
Notes: The CCM (Central Control Module for comfort system) is mounted on the floorpan in a protective box, under the carpet in front of the driver seat.
Horn Trigger black/white + driver kick, red 17 pin plug
Memory Seat 1
Memory Seat 2
Memory Seat 3
Immobilizer Bypass Module: Required: Yes Type: Transponder Part #: 556U, 555B, or 555U
Notes: See DirectFax document 1056 for additional wiring information.

[koolade9]

I have the older techsoft database from '03, and they've definitely added more info over the past few years. Good work!

[LavaSurfer]

I actually was searching on Google for the VSS wire and that popped up. So I posted it here to hopefully help some people out and keep the useless posts to a minimum.

[chrisofer]

Not too long ago I installed a JVC headunit with the amplified wiring harness where a non-Bose symphony II a4 headunit was and for some reason the speakers cut out intermittently and in different speakers when the volume is turned up. Does anyone know how to fix this?

Thanks for your help in advance.

[LavaSurfer]

Not too long ago I installed a JVC headunit with the amplified wiring harness where a non-Bose symphony II a4 headunit was and for some reason the speakers cut out intermittently and in different speakers when the volume is turned up. Does anyone know how to fix this?

Thanks for your help in advance.

If you aren't running the rear speakers and the subs off the preamp outputs on the back of the head unit you could be sending WAY too much voltage to the factory amp and it might be clipping.

However if you installed it correctly (in this thread I posted up a diagram on how to do it), then I would say you have a bad connection or a bad speaker that is causing the amp in the JVC headunit to clip and cut out at high volume.

You can also take the head unit out and take it to a stereo shop and get them to put it on a test bench. We would usually charge 30 bucks or so and this would make sure you aren't having a problem with the headunit.

[chrisofer]

If you aren't running the rear speakers and the subs off the preamp outputs on the back of the head unit you could be sending WAY too much voltage to the factory amp and it might be clipping.

However if you installed it correctly (in this thread I posted up a diagram on how to do it), then I would say you have a bad connection or a bad speaker that is causing the amp in the JVC headunit to clip and cut out at high volume.

You can also take the head unit out and take it to a stereo shop and get them to put it on a test bench. We would usually charge 30 bucks or so and this would make sure you aren't having a problem with the headunit.

cool thanks!

[weberic3]

I didn't connect that also during my install. Although you can get an adapter to connect it to your head unit. I will tell you that I have the AM/FM ant. stated in the above link plugged up, and the radio reception sucks compared to the stock radio. I then got an adapter for that other plug and it made no difference. I'm thinking it's some sort of powered antenna. I'm not all too worried about since I have sat radio though....but it would be nice if I could figure it out.

Hi, I've noticed my AM/FM reception is horrible also, but i'm all stock right now. The post by Jbrentd about the amplifier sounds like it will fix this right? Or should i look to the OEM radio amplifier (think i read a TSB about this issue but i'm sure the stealership will take an arm and my leg). Not real sure what to do, got any advice?

Thanks!

[Carcrazy]

Cant imagine, can you please send me a picture of it,or follow the wiring diagram.

[WantaA4]

Reserved.

You have PM

[martini]

how about the speaker sizes

[dummptyhummpty]

how about the speaker sizes

I believe all the midbass are 6.5in. The tweeters are 1in (not sure on this). The sub is a 10in and the center is a 3in.

[pyrobecks]

What does this (boxed in red) do? I don't think my Metra Kit used this, and I have been having issues with really horrible AM/FM/HD radio reception. I am using a powered antenna adapter.

[dublovinn]

new to audizine-
have an 02 a4 3L Quattro.

I've been having some problems with my bose subwoofer lately-there is a loose connection in the trunk. If you hit the woofer it turns back on, but only for a period of about ten minutes where it disconnects again due to the movement. Any suggestions as to how to fix this? Does anyone have any wiring diagrams?

Thanks.

[dummptyhummpty]

new to audizine-
have an 02 a4 3L Quattro.

I've been having some problems with my bose subwoofer lately-there is a loose connection in the trunk. If you hit the woofer it turns back on, but only for a period of about ten minutes where it disconnects again due to the movement. Any suggestions as to how to fix this? Does anyone have any wiring diagrams?

Thanks.

Your connection to the speaker might be loose. If you look at the rear deck from inside of the car, the big grill pops off. I think you should be able to get to the connector from there. Let us know how that goes.

[RAVI]

have any of you guys run into their bose amp going out? im getting a tick tick tick.. loose connection type sound when my d3 turns on. i've took it to a shop and they most likely its the bose amp. also, when i start my car.. i get a beep 3x coming from the trunk (i assume its the bose amp) anyone know what thats from if im wrong?

[dummptyhummpty]

also, when i start my car.. i get a beep 3x coming from the trunk (i assume its the bose amp) anyone know what thats from if im wrong?

I think that has to do with a battery and your alarm system. I've seen other posts about that.

[mchupe]

my volume cuts high and low when its hot outside. has any one ever experienced this? if so do you know how to fix it or the cause so audi will fix it?

[dummptyhummpty]

my volume cuts high and low when its hot outside. has any one ever experienced this? if so do you know how to fix it or the cause so audi will fix it?

I seem to remember there being a TSB for this. I think it had something to do with the door getting hot and something shorting out. I'm not sure if that's the issue you are having, but you should do a search.

[CaRtharsis]

I recently installed a Symphony II+ in my o4 Avant. I have noticed a marked decrease in the sensitivity of my Fm signal. I had a coax with nowhere to connect it on the II+. Should I have inserted it into the second spot in the antenna plug? Can't seem to find much referencing it. Any help would be appreciated.

[koolade9]

I recently installed a Symphony II+ in my o4 Avant. I have noticed a marked decrease in the sensitivity of my Fm signal. I had a coax with nowhere to connect it on the II+. Should I have inserted it into the second spot in the antenna plug? Can't seem to find much referencing it. Any help would be appreciated.

The antenna plug will have two slots, one for the diversity antenna and the regular antenna... connect the other one

[Teej2008]

Hey guys, I dont care about not being able to control my ipod/iphone from the stereo controls. I just want to know if I the back of my stereo has RCA outs so I can use a Y connector and plug into my iphone. I have a symphony 1.

[koolade9]

Hey guys, I dont care about not being able to control my ipod/iphone from the stereo controls. I just want to know if I the back of my stereo has RCA outs so I can use a Y connector and plug into my iphone. I have a symphony 1.

you can make RCA outputs, you just need to make a pigtail out of the low-level outputs...

what is sounds like is you need is an aux input in which case, the answer is no...

[krisko]

Im so lost right now. Im trying to install a sub with my stock headunit. I thought I had the non-Bose Symphony II system. But the amp digrams for both the BOSE and Symphony II are totally different then my plug that goes into my amp. I bought a RCA converter I'm just trying to tap into the rear speaker wires. Is there another system that AUDI put in these cars? It seems like my plug as 3 rows of wires not 2. I have the stock 8inch Sub in my car with 4 door speakers 4 tweeters. The speaker on the Dash. My head unit says AUDI Symphony on it but not AUDI Symphony II. I also have the head unit with the Satulite radio.

[krisko]

I just went out and looked, I have a 23 pin connecter its a light blue color.

[nikothegman2003]

Hey, i have a b6 a4 3.0 (2003) and it has a symphony ii stereo bose. I bought a symphony ii+ stereo and the harness adapter for it, and when i plug in all the wires, the unit makes the noise it makes when you first plug it in, but then it doesnt turn on or anything, also the antenna wires do not connect in the new unit, has anyone done this switch, or anything close to it?

[dummptyhummpty]

Hey, i have a b6 a4 3.0 (2003) and it has a symphony ii stereo bose. I bought a symphony ii+ stereo and the harness adapter for it, and when i plug in all the wires, the unit makes the noise it makes when you first plug it in, but then it doesnt turn on or anything, also the antenna wires do not connect in the new unit, has anyone done this switch, or anything close to it?

Nick,

I saw your PM. Someone has done the switch it's either documented on here or on audiforum.us (I guess this used to be navplus.us). I would do a search on both sites because I know I have seen it documented.