I got a new amp for my subs, and I'm thinking about taking my old amp and using it for the door speakers. I have 2 12" 800watt Pioneer Premiers, and they are powered by a Poweracoustik Area 51 520x2 amp. My old amp is a Rockford Fosgate Punch 225.2. It has 112.5 RMS per channel into 4 Ohms. Can I use that for my door speakers? If I do, do I still need to connect the speakers to the amp? A friend of mine said the RCAs will take all the info I need to the speakers? I would consider myself an amatuer in the whole car audio end of things, so any comments would be appreciated. Thanks!

98 Black Mystique ATX/Duratec "Mystique, the luxury SVT" P.S.- This is what part of the alphabet would look like if the letters Q and R were eliminated....