I basically want to intercept the wire that feeds the speedo and take what I need from there. If you remove the cluster in a JK and start the enigne the wipers and I think blinkers will start running. Plug it back and and they stop. I then started removing one wire at a time from the harness plug that plugs into the cluster to track down exactly which one was feeding the signal. It is one of a couple wires as once I remove either of them it starts the wipers/blinkers routine again and the speedo/odometer stops working. I need to know what type of signal this is, how to read it, and how to reproduce it. My goal would be to even while sitting still be able to turn a twist knob and adjust the speedo from 0 to 100mph. Basically sending a false signal to the speedo to manipluate the speed it is showing.