wiring a headunit

my friend just got a 95 mx6 base and he had a stock cassette player, when i pulled it out the wiring was a mess back there, it looked like someone just cut off all the harnesses, and just connected wires... well i need to connect it up, and i don't know what any of the wires are. Can anyone go through and tell me which wires are which, there was like a yellow with a green stripe a green a green with a black stripe and a green with a orange stripe, also there was a bunch of other ones, but i don't remember . . can anyone help, if so that'd be great thanks

Dustin