aftermarket head unit

  1. N

    Aftermarket Head Unit - Ground Loop Isolator - Subwoofer not working - BOSE

    Hi guys! I have purchased an aftermarket head unit to my Bose system S3. After i installed it, everything worked well (rear speakers, subwoofer), but i had a really annoying alternator whine. So i purchased ground loop isolators, connected them. Now i don't have the alternator whine finally...
  2. s3mad_dude

    Sold NEW Autoleads PC9-408 Bose Radio ISO adapter harness

    A new and unused (but previously opened package). I was going to fit this Autoleads PC9-408 harness to my 2002 8L Audi S3, but I ended up making a custom wiring harness for my aftermarket subwoofer instead, so this was never used and never fitted. There are cheaper Chinese alternatives, but this...
  3. Gommble

    ISO harness for 2009 Audi TT 2.0 TFSI Auto?

    I would be most grateful if anyone could help, I have a Pioneer double DIN stereo, but having real trouble getting the correct ISO harness. 2 companies sent me what they thought was the correct item, both sent the same item which was completely wrong, all the wires are in different positions...
  4. N

    Mysterious volume level control

    I have an issue with my volunteer while using a aftermarket pioneer SPH DA230DAB radio ( Volume issue happened with previous aftermarket radio). The volume seems to increase and decrease based in speed often when my volume is level 5 or below. The volume would be fine as I'm driving but as I...
  5. K

    Neither Audi concert or aftermarket Headunit turns on..

    Hey. Last night I got my brand new DSX A410BT from Sony. It came with a wiring harness installed, from the radio to the car cable. however I did have to switch yellow and red cables with each other to boot up radio. I got it to boot 2 times even speakers were working fine. but I noticed the...
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