Modifying the PAC LC2 :

  Now that the overhead unit is done, we move back to the PAC board. I've cut off the factory knob control, and soldered in wires that match the wiring I did in the overhead. I used an Ohm meter to determine which wire was the high end, and which was the short end by turning the volume knob to Zero and seeing which terminal showed almost zero resistance to the center terminal. This means this terminal is my red wire, as it is shorted with the volume at zero.


Here's the connector in place, wired up to match the connector I added in the overhead console:

I also added a connector onto the speaker input wiring, this connector matches one I already installed in my car. The two negative wires in the middle, with the positive wires on the outside:

Put everything back together and the PAC is ready to go: