I am trying to install a new set of 12" Kickers in my Burban and trying to wire the controls to the back of the stock LTZ Navigation screen head unit. How do I pop the head unit out to plug the RCA cables into the back of the unit???

 

Welcome to the forum.

Carefully pop out the plastic wood trim piece and then you can pull the unit out after removing the screws.

 

How do I pop out the wood trim piece?? What should I use?

 

I'd recommend a thin, wide plastic trim removal tool. If you're very careful, a putty knife might work. Or you can ask a tech in your service dept how they do it.

 

there are no RCA outputs at the rear of ANY factory radio
buy a line level converter and connect it to your rear speakers

 

This link has an install video that shows how it "pops" out.

http://coastaletech.com/gmlockpick1.htm