Tim,
For the power supply they put on "vampire" type connectors (vampire connectors are clipped over an existing wire to connect to a new wire without cutting the existing wire). For the connections for the phone audio & trigger they soldered on female connectors to the wires then placed them into the correct holes on the connector plug. So the only modification to the FEH wiring was the addition of the vampire connectors for power. There was no need to cut off the unused connectors from the hands free kit so they just zip tied them out of the way.

If you have done radio installs before you should have no problem with it. Also, I'm sure that now that the connection pin outs are known that other hands free kits will work as well as long as the phone trigger is low enabled (meaning that at ground state the phone audio is on).

Mike Kinnell
Sonic Blue FEH AWD
Go BLUE!