Subject: Another question Author: wala0003 : member since October, 2009 : 15 posts Posted on: 2009-11-17 22:49:37

I think I found the answer to my problem but don't know quite know to implement it. It seems my mute signal is going directly to my DSP amp, and not to the radio head unit. With the previous head unit, the DSP amp operated differently(used the digital input for the cd changer for example), and likely reacted to the mute signal when it was on.

With the new CD53 head unit, the amp likely expects the muting to be done at the head unit, and I need to find a way to pass the mute signal from where it was going (directly to the DSP amp) to the head unit.

So does anyone know what wires run from the radio to the trunk? I know that the mute signal is on pin 13 of the X18772 connector on the DSP amp, but I don't know if there is a wire that connects from pin 4 on the X18126(R17 radio connector that attaches to the radio) to the back.

• TCU and 2003 CD53 - wala0003 2009-11-15 21:05:38 (351 views)
  • Another question (pic) - wala0003 2009-11-17 22:49:37 (427 views)
    • Trace the TEL-mute wire from the TCU.... (pic) (url) - lederhosen 2009-11-21 18:55:55 (363 views)
    • I don't know... anyone else with some ideas... - Brian 2009-11-20 08:51:33 (397 views)
      • try sending lionsden1980 an e-mail, good troubleshooter. (nt) - 95seven40 2009-11-20 21:27:23 (325 views)