Thank you CL770! Fix worked great, this has been bothering me since I bought the car.

Pioneer - yes, I just finished soldering this connection, it is possible. If you remove the facing you have free access to the other side of this connection. I soldered directly on top of the blue pin receptacle, not pretty but it worked. If I did this again I would cut the receptable out and trim the pins down and just solder directly on top of the board.

Just a note, the side plastic hex head screws in the temperature control wheels have to come out. They do not unscrew, the pull straight out and they are slotted to fit the electrical connection behind the wheel. Once these plastic pins are out there are eight plastic tabs holding the circuit board on the face (they just slide to the sides). Make sure you note the location of the temperature wheels for reassembly.

Thanks again!