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73-87 Chevy _ GMC Trucks => Electrical => Topic started by: Stewart G Griffin on March 05, 2016, 06:47:48 pm

Title: Need a 12V source key on only:
Post by: Stewart G Griffin on March 05, 2016, 06:47:48 pm

1) Does the BAT on the fuse panel mean it's always got power even when the ignition is turned off?

2) i'm trying to wire an electric fan using a relay. Could i just tap into something else like my aftermarket gauges (which i used one of the IGN terminals for which is one reason i don't have anymore IGN slots left open) since the toggle switch/and power to the relay isn't really going to consume that much power?

All 3 of my IGN slots are taken.
 

Title: Need a 12V source key on only:
Post by: blazer74 on March 05, 2016, 09:41:30 pm

Sure you can, u can piggyback to power a relay.

I added a small aux fuse panel to power my added accessories.

Batt should be batt hot, check it with a meter or get a cheap test light.

Title: Re: Need a 12V source key on only:
Post by: Irish_Alley on March 06, 2016, 07:30:24 pm

i wouldnt wire it into the ignition only type switch. i would go for something that has a thermostatic setting so at a certain temp it would kick on instead of as soon as you start it up