Ok, I've gotten a new Pioneer AVH-3300bt head unit and I am trying to wire the wires from the head unit to the wiring harness I bought. I've gotten most of them, but I need help with the rest. I have the audiophile system with the amp in my truck, too.

Here is the harness I own - Amazon.com: Scosche FDK11B 2003-Up Select Ford Harness for Audiophile Sound Systems: Car Electronics

4 brown wires - they say all saw mute. I read on another F150 forum to simply cap those off.

orange/black - dimmer ground - read to cap that one off as well.

red and yellow wires - they came already spliced on the head unit wiring. Am I supposed to do the same with the harness and then splice all four wires together?

violet/white - reverse-gear signal input - This is on the head unit wiring. I believe this is only used if I have a back up camera. Well I bought one so I am going to need this. There are no instructions on were to splice this on the harness.

yellow and pink - yellow one is on the head unit and says mute. Pink is on harness and says phone mute. I think these go together, but colors are different so I am double checking.

Blue and blue/white - Ok, so the head unit wire is blue/white and says "System remote control" and in the manual it says: "Connect to system control terminal of the power amp or auto-antenna relay control terminal (max 300mA 12V DC)." I have a solid blue wire and two blue/white wires on the harness. There is a seperate plug that came with the harness (see picture in link for more info) that has the two blue/white wires, both are positive, that say "amp turn on +". Where do these go? The red ignition wire? The solid blue is for "power antenna" so that one looks like it connects to the head unit, but not sure.


Ok, I think that is it. Very sorry for the long post. Hope someone can help me out. Thanks in advance,

Colby.

 

OK gundowned, First of all I hope you haven't cut the factory connector off of the harness yet. If you have you will be there for a month of sundays trying to figure out what is what. Search pioneer and see if they have a direct connector for your rig. I am assuming your pioneer has the audio out RCA connectors for your big amp. Should be no problem there. Don't know if you have figured out your speaker system yet, There is one common wire for each side. Ya need to find which of the two controls the left and right side speakers. Do not tie these 2 grounds together, nor any other grounds that you find. For this will blow all yur amps. Once you have the speakers figured out, then you will probable have to check each and every wire on the factory harness to see what goes where. A good digital volt meter will highly assist. I have an B&K that I purchase years ago and has been a life saver. Good Luck

 

The harness plugs directly into the factory wiring. No cutting needed. THe only wiring I am having to do is from the harness I bought that plugs into the factory wiring to the wiring from the head unit. I've already got the speakers and everything else wired correctly (I hope) now I just have those couple of wires remaining. I haven't tied any grounds together either. You seemed to have completely misunderstood my questioning.

 

So I went ahead and wired it according to what I assumed in my above post with some exceptions. I connected the red with the red and the yellow with the yellow. I did not place them together as now I understand that is not correct. Not sure why they came together from Pioneer though. I spliced the yellow and pink wires together. I didn't get a chance to test that out however. I put the two solid blue wires together and then wired the two positive blue/white wires to the red ignition wire.

So far, everything seems to be working fine. Audio quality is much better, especially the bass, even with the stock bass it has quite a kick. The only problem I have run into isn't even dealing with the radio, it's my tuner. Since wiring all of that up, my tuner (Edge CS) screen now flickers and it has a faint beep noise. This only happens when the radio is on. What could be causing this? To much power somewhere? I know it has to do with my wiring, but not sure where to go from there. Any info is appreciated and please still answer my above questions if you can as all those connections were done off assumption, which usually isn't good, lol.

 

Sounds like you have a faulty connection there somewhere. Not for sure but may have missed a ground wire there somewhere. There is a chassis ground that may have been overlooked while hooking your system up. The ground usually hooks from the chassis directly to your head unit chassis. Ok now I probably got ya all confused. Nothing is simple anymore. The old 8-tack systems when they came out only had 4 wires, one hot one left one right and one common for everything. Good luck again.

 

I got the ground wired up actually. I think the problem may have been a simple wiring error. I'll have to wait till tomorrow to see if my changes have worked.