thanks guys, im going to burn a CD and use the ipod and see if i can hear the diff, god i hope not, because if the ipad sounds shit i will have to ditch it system wise im going 2 12" Kicker CompVT's slimline sub enclosures (still about 4 weeks away from hitting Aus though) running off a 900rms watt kicker mono block, JL audio CT2600 splits running off a 250rms watt kicker 2 channel, and mounting the ipad against the dash as a touchscreen easiest way is to get kicker or amps with line level in conversion so you dont have to fuck around with RCA's on the stock stereo