I went to install a lineoutput converter today, behind my headunit. I read thru the sticky showing the audio pinouts, and my part # on the radio started 15xxxxxx not 12xxxxxx. Which wires do I splice into for the rear decklid speakers, which one is positive and which is negative? I have the Pioneer system and I noticed there were different colors going into the speakers. Thank You for the help.

 

most likely the wires will be purple and green. but it will be easier to splice them near the rear speakers, so you dont have to run the rca cables so far. plus youll know for sure with wires to cut.

 

By splicing in at the rear speaker, will the stock amp make any problms for me.

 

good question, i would splice right behind the headunit. i guess your not running an aftermarket headunit? i dont know what color the rear speaker wire is then.