Some posts lead me to believe a speedo & tach can be added to my '07 Freestyle. So, right or wrong, I purchased the gauges from a '06 GSX, and the speed pickup from another sled. But I'm having trouble finding a stand-alone wiring harness for the gauges. Can anybody tell me what I should be looking for in a used harness? I'm guessing I'd have to peel the necessary wires and discard the rest.