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This injection-molded bulkhead connector is specially designed to mate with the “bow” style connector commonly found on GM dash wiring clusters. The bow connector is normally installed into the dash cluster cradle, and when inserting the dash cluster, mates with the contacts on the flex PC board, connecting dash functions to the dash wiring harness. Using this connector, you can facilitate these connections without use of the flex PC board.

Comes with two PC boards which are designed to accommodate wiring via solder pads, and wiring instructions for turbo Regal dash.  

Installation: http://www.installationinstructions.com/103071.pdf