Okay, I didn't completely finish the install how I wanted, but I am very close. I have to blame it on the Texas summer heat. My thermometer indicated that it was 103F in my garage. The only thing I didn't accomplish was an audio input jack to make the install look a bit more factory. But for those that simply want to install the P.I.E. interface, this will get you there.
First, force an introduction between your PIE adapter and your factory head unit. I actually took this picture to show you guys what I am working with.
Before you start the installation, you probably should disconnect the negative side of the battery/batteries. I opted not to do it because I was being lazy. I am sure that you could easily destroy your electrical system, so you should probably disconnect the ground.
Parking brake in:
Shifter placed in 1 and the steering wheel lowered. This is done to make room for the dash to be removed.
Pull off dash. I started in the lower driver's side corner and worked my way all the way around. It came off easier than I had anticipated.
Now disconnect the harnesses that are connected in the back of the dash panel. I had all sorts of things to disconnect, such as pedal adjust switch, headlights, a/c, power station, 4x4, and so on.
Now place that panel in the back seat so you don't crush it.
This is what you have:
Now remove the radio. There are 4 bolts that mount it to the dash.
1 of 4:
3 of 4:
I wanted the PIE unit to be powered until I opened the door, so I did some multimeter magic.
Eventually I found these two here (pink is + the black was -):
Key turned on, then off:
Door opened:
Plug in PIE:
Splice the gray/violet wire from PIE to the PINK power wire (I used a interconnect):
I used the radio chassis as a ground:
You are done right there with the wiring, here's my test:
Dash put back together and audio jack coming out of the bag hanger:
I hooked it up with my blackberry's pandora app for internet radio. It sounds excellent. My phones audio actually comes out of the speakers now too. Eventually I will wire in a audio input jack, but it's just too dang hot right now. I have the gain on the PIE adapter almost to it's maximum level. My phone was at about it's 75% level.
I hope this helps someone.
It really was as easy as pie.