No problem. The instructions that come with the head-unit will not describe how to hook up the Voltage Reg. or what to buy. That although is in the Avic thread in the utlimate sticky here -- >
http://forums.stangnet.com/736028-pi...-write-up.html
And I quote: "Voltage Regulator (Shaker 500 Only):
This is needed because the Ford Amplifiers in the Shaker 500 system require only a 5V turn on signal; however the Avic-D3 puts out 12V. This causes a popping sound to be heard every time the car starts up." -
There are pictures to show you where and how to install the regulator. This works the same with any aftermarket head unit.
To fix this, you must put this regulator (7805 from Radioshack) in between the Blue/White System Remote Control output from the white Pioneer Harness (input) and the 2 Blue/White wires from the small Metra Harness (both go to the output) The middle of the regulator is for the ground. To make this easier, I took 3 pieces of the parking brake leftover wire and attached those to the Regulator, then to the other leads. " I added the bold line. The only thing that will be differen't is the wire coloring, but the instructions that come with the head unit should tell you which wire is the remote turn on wire.
I'm not sure, but from what I've read, you can have one or both HD radion and Sat. radio. I'm also not quite sure what Y connetor Dark is taking about. I think its just a Pre-amp output that needs to be connected to work with the Shaker 500/1000 amplifier and subs. Either that or it is for a second set of pre-outs.. I think I'll leave that question to Darkfire.