I'm putting alpine type r's in my 1994 celica. Along with the components and 2 coaxes im installing a pioneer deh-p5100 head unit that puts out 22 rms per channel. Needless to say i'm installing an alpine 4 channel amp. My question is does the head unit rms rating add to the rms out put of the amp? Like say i have the alpine that puts out 75 rms per channel if does that add up to be 97 rms per channel with the head unit? my speakers will accept 110 rms up front and 100 in the back.

oh and raamat sound deadener and barrier is it worth it? the 94 and 95 celica have no deadening.