Jon316G

I have a 2001 F150XLT Supercrew and want to solder RCA jacks to the circuit board so I can plug my MP3 player to it. After removing the unit I looked at the circuit board and there is no screen printed identification for the pins. Can someone tell me (or better yet send me a diagram) the location for the "Line-In" and/or "AUX" pins so that I can just solder the RCA wire to the pin?
Also, I have the stock 6-disc CD changer and was curious if anyone knows if that uses the line-in or aux pin?
Thanks in advance for your help!

WesternPaStepside

Have you searched for a line level adapter? I'm not even sure if they make them anymore but I know I have one packed away somewhere. It converts speaker wires to RCA's if that's what you need to do.

Jon316G

I'm looking at actually soldering the RCA wires straight to the pins where the harness plugs into the circuit board. I have RCA wires, I have a soldering iron, I just need a location to solder the wires to make my own line-in/aux port. I need this for my MP3 player (because the FM transmitter sucks).
I can't seem to find shop manuals online for my F150 so I can't just look at an electrical diagram for the pin configuration on the connector. I am hoping that someone here has a shop manual and is willing to share it with me (if they have a PDF version that I can view).

Ty

A line level converter is for a signal out, he actually wants to solder the rca plugs as a imput for his mp3 player.