stereo wiring

[65Pontiac]

i was bored today and decided to put in a old pos pioneer hu i had laying around in my 1992 corolla dx.its all hooked up so far except 2 wires. its a green wire and also a white wire .

also i found a diagram and it sad the ground was black. but the pin where black would be the wire is brown.would this be ground since there is no black? o the diagram was for a 95 i think.everything was good except for these

i just want to make sure

thanks for the help




-sorry for posting it in the wrong place..maybe this is why i couldnt find a thread on it lol