Hey Lee, it wont let me private message you with out 5 posts so I'm going to bring this back to life and hope you are still on this forum. I have the nav and garbage amp and 8" sub in the back, I have a 10" sub and 400rms amp running 2ohm back there now, no matter if i source the amp from the rear door speaker wires or from the factory amp source it is not getting very loud, the door speakers are more audible... did you run into this when you were trying to figure things out? -Disregard- I redid my ground and all is well
