Does anyone have the specific wiring pinout (color codes) of the wires for the RDS module (Tire Pressure)?

I have an r53 that has the factory navigation. I wanted the dual cluster on the steering wheel that had the on board computer lcd with the mileage lcd (from the chrono package), so i bought one on ebay and it works perfectly (had to also retrofit the headlight stalk with the obc toggle button that has a single wire that goes behind the navigation screen). I had to use the gauge faces (face covers) off the old gauges so the light indicators were in the right spots (cut the left face bottom area to match the hole where the new lcd is, so it looks stock).

The only issue I have is that these gauges do not have an indicator for the tire pressure system. All mini coopers have the blank circle light located around number 4 or 5, so I figure I can "hard wire" a yellow light in that spot (and print the tire logo on a clear sheet, and stick it on the blank). Mini cooper WDS (wiring diagram system) indicates that there is a wire that goes to/from the RDS that is a "hard wired" switch that triggers the system (http://www.bmw-planet.com/diagrams/r...000016463.svgz located on the right). I figure all I have to do is tap that wire for the light.

Thanks for any help, and I'll def. make a tutorial/guide for this retrofit.

cliff