Need help/advice on which amps to buy.....
 

I have a 2005 Yukon Denali XL fully loaded. I have 3 Rockford Fosgate 12" P3's in a custom ported box. I need some advice on what I should do amplifier wise. Is there a single amp I can use? Do I use mulitple amps? Also, what kind of amp do I use on the stock speaker in the car? I would like them to be louder. Any help or comments would be appreciated.

I personally prefer one amp for all of them. it is a little bit difficult to adjust 2 or more amps together. are they d2 or d4 ? if they are d2 , then you have to buy a amp which is stable at 0.25 ohm or 1.5 ohm(it depends on wiring parallel or series). if they are d4 , get a amp which is stable at 0.75 or 3 ohm.