Philip-
You'll want to connect the white brake switch wire to the columns white wire or Black with white stripe wire.
Here's a link to my website with the pin code for GM Columns and the connections.
http://50chevy.freeservers.com/Remote_Entry.html#GM STEERING
P.S. When you make the connection check for current from the switch going up into the column and then again going out the connector to the stop/taillight wires.
Like I said earlier, sometimes the connector doesn't make good contact between the pins and you won't pass current from the column to the wiring harness going to the back.
Chevy1
