Ok I am a newbe to my 89 60hp Johnson VRO. From reading here, I now know its suppose to "chirp" when the key is turned on and sound continuely when the tan temp sensor wire is grounded, I get nothing just silence. Is the horn internal to the VRO pump? Or is it in the control box? I am hoping some prevous owner disconnected it and it won't require replacing the $$$ VRO pump.