Hi guys I searched but couldnt find anything specific, I want to know if I can get my XM Onyx connected to my factory head unit? The unit is a JBL and it has the button AM/SAT on the head unit. When I get this installed I would like to have my amps and door mounts and kicker L5 installed as well. Do I need to get a different head unit (I know I need to keep the factory for the climate control) in order to have my amps installed? I would have about 3-4 amps installed, 1 for sub, 1 for tweets, 1-2 for door mounts. It would save me $ because the head units that I want are expensive. Thanks for reading.