this is my best bet, for your remote wire... wire it up to one of them 12v outlet ( cigarettes lighter ) don't cut the wire ( you may want to still use it ) strip the rubber part and twist your remote wire over the metal piece, than put electrical tape over it. ( when you turn your car on, it'll send power to the 12v outlet and there for turn your amp on) if you want to control the amp, put a switch on it so u can turn the amp on or off. ( some cd player have the option to do it also)
best buy or audio store (maybe wal-mart) sell ( dont remember what its call )
this thing that you hook your door speaker wire up to than it turns into a rca out put, thats how you use a stock cd player. the rca output shouldnt be hard to identify.
any question pm me,
-tue