i believe that PAC makes a LOC (line out Converter) its alot easier... 5 wires. 4 for the speakers which you gotta splice into the wiring harness which i usually do rite behind the headunit and 1 wire for ground. if you already have a piece, try to find out who makes it and which model it is and ill try to help you out more. is it one that you got from walmart or from a real audio store