Quote:
Originally Posted by I am me
How should I wire the glow plug circuit? Hook all of them to the positive end of the relay. Ground the other terminal to the engine. Run the positive wire that controls the relay to my switch and then tap into the main power with the switch? I'd like the power to the switch to be turned off when the trucks off, so how do I find where to tap into the circuit that the key is controlling?
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Take your multimeter and go trolling through the back of the dash until you find a circuit that's switched hot. The radio power would be a good candidate.
This would be one way to wire it, except use an 80 amp fuse and appropriately sized wires -
I used a pretty small switch for my activation circuit so I used a little Bosch relay just to be safe...probably overkill but better safe than sorry.