Aftermarket Audio/Video Install Talk

[UNOMYFLO]

I have the base audio system in my H3 with the exception of putting the monsoon 6-disc head in.

I want to add an aftermarket 4 channel amp and possibly a bazooka tube. Can someone please tell me what needs to be done to integrate this into the stock system? I dont want to cut anything up...are there adapter plugs that can tie in an amp? I know I need to get pwr and ground and the remote turn on to the amp,,,but how do I get the signal from the head to the amp, plus I believe all my speaker leads run to the back of the head and when the amp is installed they will have to run off of it and I plan on mounting it in the rear, possibly in the drivers rear storage bin...I might get a 200w 10" bazooka and strap it down in the rear...anyone have any experience with these bazookas?...I know they have their limitations but I am not looking to enter sound competitions just want some bass that is lacking now...plus the flexability of removing it at a moments notice.

Thanks Mike