My 2011 Toyota Tacoma did not come with a compass/temperature overhead console. I recently purchased a compass/temperature overhead console off of e-bay that will slip into my 2011 Toyota Tacoma. My Tacoma has the wiring harness for the compass/temperature unit. I pulled out the the current overhead console and plugged the wires into the map light and the compass/temperature unit and it does not work. I checked under the hood and there is a sensor unit on the wire that I was told was the sensor unit for the temperature unit. My map lights work. My question is whether there is a fuse that I need to insert to make the compass/temperature unit work? I was under the impression if the wiring harness and sending unit was in the truck all I had to do is snap a compass/temperature unit in and it should work.