Stereo questions

[rfh1030]

I have 2010 Yukon Denali and decided to add subs. My questions are if the rear aux inputs for the dvd system can be used to plug in the amp rca cables? If not can somebody tell me which wires I need to tap into on the navi system to hook up the line output converter?

Thank you

 

[Teamcalzone]

Find the wires for the factory sub and tap into them, I found mine under the arm rest, pull the big tray out and you'll see a 2 wire connector there, mine is an 07 w Bose.
I actually tapped into the factory sub amp wires.