I need help installing my SWI-PS modual for my radio to use my steering wheel buttons I've had this thing laying around for a year now & I have no idea what wire to splice into, so any help will be good

 

Do you know what kind of radios it supports? You could use this site for instruction manuals if you don't have it... Pac-Audio.com Product Details | iPod Integration for your car and More by Pac-Audio - Connecting you to the future

As for wires to tap into:
Black is your ground from the stereo
Red is easiest ran to the CIG/AUX fuse on the driverside fusebox, or you could use the switched wire in the ignition (I don't know this one )
Step 3 will be connected (green wire) to pin 14 on the 24 pin connector, (should be green, I'd verify first)
Step 4 says to refer to your vehicle installation guide...not sure about that one, try googling it...?

That's the best I've got, and everything else should be programming. Good luck, I'll do my best to answer any other questions

 

It supports mine lol which is a Pioneer AVH-4200

Well ion the power wires it's mainly the green wire udon where to put it lol but wat u said is wat I was lookin for & that's on the radio plug right

 

Awesome, glad I could help man!