There is a hot light on the dash and also a temp gauge. Neither are hooked up and the temp gauge wires come out by the shifter and throttle lever box. What wire should go to the hot light? I have the manual for the motor and it does not indicate any thing for these. For the temp gauge, where should the sending unit be mounted. The engine is a V4 out board model GG8850A. I asked a mechanic and he said that there has to be a plug or some place there to mount the sender. I could not find it. I am not totally sure what to be looking for. Thanks for any info.