stock units shouldn't have rca outs
you'll need to get an inline converter (high to low) to be able to hook up to the rca cable running to your amp.
does the amp also have a regular input? i know many might not recomend it, but i spliced into the rear speakers (didn't want to run the wires down the passenger side) because i wanted just bass and didn't need the amp for the whole system.
mine is a stock unit also for camry
ps pick them up at circut city, bestbuy, or your local stereo shop
and the remote? splice into your cigarrete lighter or any other 12v source you would rather use . i added a switch here so i could listen to the radio when the engine was off
try this link for guides:
tom