Pdwelch
You Have two options on the OBC;
You can do a 4 stalk and a 5 wire harness that will look completely factory, hard part is sourcing a 4 stalk switch.
Poor Man's as it has been come to be called is to use a window switch and a 3 wire harness.
In either case you will have to have a dealer or someone with a Durametric turn on the OBC function.
I ran across another 4 stalk switch assembly for a good price at iwantaporsche.com
Let me know if I can help
Dwight
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