i was given a older pioneer headunit,thought id try n hook it up but the wires are a little diff to what im used to,top row;pin 1 green/black pin 2 grey/black pin 3 black pin 4 blue with fuse pin 5 black/grey pin 6 black/green row 2 ;pin 7 green pin 8 grey pin 9 orange pin 10 red with resistor pin 11 grey/red pin 12 green/red,i just need to figure this out now its driving me nuts and unfortunatly i dont even know if the unit is any good....thanks in advance