Re: Volt meter \ electric fan share ACC spade?
Radio has its own fuse and would be turned on by ACC position, if OE. Otherwise, later aftermarket would need a BAT for memory and ACC to turn on.
Radiator fan, I would control by relay using the ACC spade to turn on/energize the relay with fan power coming from the buss bar through the relay contacts to fan motor then to ground. This way, the relay handles the current load and ACC handles the low current of the relay coil.
Voltmeter can remain on the ACC spade as technology today, meters require very little current, milliamperes.
With the above set-up, I believe the original size fuse for ACC and RADIO would more than handle the load. Wire the fan relay just like Steiner suggested earlier today in another post complete with diode to cut down on spiking from the relay coil.
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