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Appendix A: Known Incompatible Vehicles
Vehicle
Make(s)
Year(s)
Model(s)
BMW
All
All with factory-activated cellular phones
All with 5-volt SWC data wire at the steering column
2002-2003
5-Series w/navigation
Mercedes-Benz
All
All vehicles
Toyota
All-2003
Sienna
Volkswagen
2002-up
All vehicles
Steering Wheel
Interface
Connect SWI white
wire to resistors
47
100
150
560
1000
1500
47 = yel, vio, blk
100 = brn, blk, brn
150 = brn, grn, brn
560 = grn, blu, brn
1000 = brn, blk, red
1500 = brn, grn, red
3900 = org, wht, red
5100 = grn, brn, red
Some vehicles have a seperate wire for each of the steering wheel buttons. Use this resistor kit for the steering wheel
push buttons that do not already have a resistor network connected to them. Examples are Nissan and Harley Davidson
motorcycles.
Connect a resistor to each side of a push button and connect the other ends of the resistor all together. Connect the SWI-
PS to these resistors. On the Harley Davidson, one button can be connected directly to the SWI-PS.
By putting two or more resistor in series, you can come up with additional values. Ex. 150 + 1000 + 1500 = 2650ohms.
Appendix B: Resistor Kit
