2005 Envoy Wiring Diagram

[darius26]

Hi all,

 

I'm looking to find the wiring diagram (color map?) for the 2005 Envoy XL - no BOSE, with OnStar (if all that makes a difference). I want to wire my rear speaker to an external AMP. The front, along with a sub (using rear channel) have been added to the AMP with the PAC GM-24 by a pro. All I want to do now is add a mono-amp, wire the sub to it and then move the rear channels of the 4-ch amp to the rear speakers.

 

Hey if you can give me info as well on additional components I will need such as:

do I need a capacitor to manage the load of 2 amps ?

Do I need some switch to make sure both amps are turned on ?

Should I do this alone or at all ???

 

Thanks,

 

Darius