I am trying to figure out how I am going to run power to my new set of gauges. What is the best way to do it (where to hook into the power supply)? What size wire should I buy to use? The three gauges all have individual lights bulbs, do all of these need to be hooked up seperately or can I combine them all together? Finally, just to make sure, if the gauges are hooked up mechanically, I don't need to hook them up with any wires, right (except the bulbs of course)? Thanks for all the help on this...
Jarrod, You can use a 14 gauge wire, and go directly to the fuse block. Use a crimp on spade connector and push it in beside a fuse that has power in the key on position. It wouldn't hurt to use a 5 amp fuse in the 14 gauge power lwire. You have mechanical gauges with the exception of the voltmeter. So the voltmeter is the only gauge that needs 12 volts. The voltmeter should also have a ground(black wire) You can connect all 4 grounds(3 bulbs and voltmeter ground), and connect them to a single point under the metal dash. Also wire the 3 bulb hot leads together and connect them to the lighting circuit. The 70-72 GS has a light in the ashtray. I simply tee into that. If you don't have that on your car, use a circuit tester or voltmeter and check the wires coming out of the light switch for 12 volts when the lights are on. Then tee into that wire.
