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Louie, Car Electronics Technician
Category: Car Electronics
Satisfied Customers: 12051
Experience:  25+ yrs. experience in the field and 5+ yrs. online, down to component level.
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I installed an aftermarket AV receiver in my 2005 Jeep

Customer Question

I installed an aftermarket AV receiver in my 2005 Jeep Liberty and now the sound is very weak. All speakers are working. No external power amp was added.Stock radio was Daimler Chrysler Part no. p05091506ae. New receiver is Pioneer AVH-X2800BS. Used a reverse wiring harness to connect stock radio connector to new receiver.Why might my output be so weak?
Submitted: 6 months ago.
Category: Car Electronics
Expert:  Louie replied 6 months ago.

Hi and welcome to the site, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.

Initially, a little more background info please:

  • • is this a fresh/new install;
  • • or was it installed some time ago, has been working as expected and this issue of "...sound is very weak..." just recently.
Customer: replied 6 months ago.
Just installed it today.
Expert:  Louie replied 6 months ago.

I understand.

Do you have access to a multi-meter?

Customer: replied 6 months ago.
Expert:  Louie replied 6 months ago.

To my understanding, the Jeep's speaker wire colors would be something like:

  • Left Front Speaker Wire (+): Dark Green
  • Left Front Speaker Wire (-): Dark Green/Brown
  • Right Front Speaker Wire (+): Gray
  • Right Front Speaker Wire (-): Gray/Brown
  • Left Rear Speaker Wire (+): Dark Green/Dark Blue
  • Left Rear Speaker Wire (-): Dark Green/Orange
  • Right Rear Speaker Wire (+): Gray/Dark Blue
  • Right Rear Speaker Wire (-): Gray/Orange

Please confirm.

Customer: replied 6 months ago.
I will need to check in the morning and get back to you thanks.
Expert:  Louie replied 6 months ago.

I understand and when able.

Customer: replied 6 months ago.
Actually, I don't know by looking at it.
Expert:  Louie replied 6 months ago.

I was hoping that you would bew able to identify the wire colors, then which wires feed what speakers; i.e. the speaker wire pair to a particular speaker.

Once identified, then the multi-mete can be used to check for continuity/resistance and if there is also a reading to chassis ground.

Customer: replied 6 months ago.
Before I open it up again, how do I know if my speaker system is an "infinity" system?
Customer: replied 6 months ago.
Also, why does my stock radio have 2 connectors? The adapter I am using only uses the connectors on the right side of the picture attached.
Expert:  Louie replied 6 months ago.

Hi again,

Please click HERE Hopefully, the article may shed insight.

If indeed an Infinity system, then there would be amps located at the front door / speakers. This would also explain the "...output be so weak..." Primary suspect would be that the amps are not triggered ON and/or are receiving low drive audio signals.

If so, then either connect all speakers directly to the Kenwood or re-configure the wiring.

The article HERE may provide added information.

Customer: replied 6 months ago.

FYI, I am still working on this, but have been busy. I will reply as soon as I can get to this. Thanks for your help.

Expert:  Louie replied 6 months ago.

I understand and yes please when able.