Hey guys just got a 2013 white GC with the 26X package with security and convenience package. Had a 2012 BASE Laredo, had the base radio and speakers for 8 months. Now that I have the upgraded radio I'm pretty happy but there is no BASS, so I'm wanting to get the JL audio stealth box and the JL audio XD600/1 mono amp. My question for you guys is where is the factory amp? I'm assuming I can just take the the speaker wire coming from the factory amp to the factory sub and just use that as the signal and put that into the JL amp for signal. (It has speaker level inputs). I cant figure out how to make the amp turn on and off tho, Has someone found a 12V that turns on and off with the GC so the amp turns on and off?