S4 T2 MPH Gauge Cluster Swap to S4 NA KMPH Gauge Cluster
 

I want to know if there is any wiring involved with swapping a US spec S4 T2 gauge cluster with a Canadian pec S4 NA gauge cluster.

I bought a US car and want to swap the cluster so it reads in km/h instead of mph.

I don't care if the boost gauge is now a volt gauge that doesn't work.

i did it back in the day, its plug and play

It should be just removing the speedometer from the circuit board with about 4 or 5 screws, cleaning the electrical contacts, and screwing it back on. The rest of the gauges should stay in the same place on the circuit board. Piece of cake. The circuit boards are labeled on the back for what features are supposed to be enabled i.e. sensors, etc. They made 1 printed circuit board design and put whatever respective gauges in their place. Just make sure you put the screws in the right holes to make the circuits you want. If it is a cable driven speedo, you will only be focused on the speed sensor (for cruise) and odometer sensors (for ecu). If it is an electric speedo, then make sure that the appropriate circuits are used. The mounting screws also carry the electrical loads to the sensors, so make sure your contacts are good and clean. Be gentle with the screws. They go into 30 year old plastic.