Audizine - An Automotive Enthusiast Community

Results 1 to 3 of 3
  1. #1
    Senior Member Two Rings Alex JB's Avatar
    Join Date
    May 08 2014
    AZ Member #
    214108
    Location
    Leicestershire, UK

    Symphony head unit, what do the wires do

    Guest-only advertisement. Register or Log In now!
    This is the sticker on the symphony CD/tape deck unit


    So I realised that the canbus switches the unit on so I found an ignition switched +VE to turn on the aftermarket unit.

    I don’t have steer wheel buttons and the only other thing worth getting off the canbus is the illumination signal (lights on) and reversing signal, both can be had from elsware.

    There is however the’K’, ‘alarm gnd’ and ‘bose’ lines in the plug of the harness.
    What do these do?



    Sent from my iPhone using Tapatalk

  2. #2
    Veteran Member Four Rings rollerton's Avatar
    Join Date
    Sep 16 2010
    AZ Member #
    64156
    My Garage
    S6 Avant X TWO! and 67' Speed buggy
    Location
    Central Wash

    I know in the similar year VW's (which have basically identical hardware for the stereo) the Alarm gnd is actually part of the ground for the alarm. If the stereo housing wasn't seated right in the dash your alarm wouldn't work right. I don't think it has that effect on the C5, so maybe it doesn't do much.
    K-line is the part of the comm link (like the can bus) for the stereo. I think (?) Bose should be the common ground wire for the subwoofer if you have Bose.
    Those 3 wires are basically ignored for aftermarket stereos.
    foley803 : What does an electrical surge sound like? Barking dogs? Watermelons?

  3. #3
    Senior Member Two Rings Alex JB's Avatar
    Join Date
    May 08 2014
    AZ Member #
    214108
    Location
    Leicestershire, UK

    Interesting, thanks.

    I think I might try grounding the Bose wire, I have the 5 channel Bose system and I am getting alternator whine.

    I see the CAN HI and CAN LO on another plug, I assumed most of the car info given to the radio is on that. But the K line I don’t get, maybe it’s the radio station info to the DIS?


    Sent from my iPhone using Tapatalk



Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


    © 2001-2018 Audizine, Audizine.com, and Driverzines.com
    Audizine is an independently owned and operated automotive enthusiast community and news website.
    Audi and the Audi logo(s) are copyright/trademark Audi AG. Audizine is not endorsed by or affiliated with Audi AG.