My heater was working fine one minute then i installed the alarm heard a spark did not see one there were no wires even near the heater or the fan and all of a sudden cold as all hell so of course i look for the fuse for the fan and can not find a fan or heater fuse in my 94 MX3 totaly have no idea so i started to look for the relay and once again could not find it???? anyone have any suggestions its getting pretty nippy out there.