Drive axle temp sensor gauge

[Scoot5869]

I have a 2010 t800 it has two rear drive axle gauges that have never worked. I put new sensors in and followed the wing back to the cab and found them behind dash as well. Now they do don’t hook to anything nor can I find a connector for them to hook into. The gauges are all interlinked so it’s not a matter of hooking into the back of the gauge. I have sifted through all the wires behind the dash with no luck of finding a connection for it. Am I missing something somewhere? I’d like to know before I just order different gauges and pop the factory ones out. Thanks