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Gauge Wiring question

T

toddwallace

Member
I am trying to wire up my 3 new SpeedHut Gaugues (Wideband, Fuel Pressure & Boost) under the dash. I need to find +12 ignition, +12 Dash lighting and ground... What wires would you tap into?? I like the add a circuit, but those are newer style fuses.. Mine is a 1966 Fastback...

Thoughts??
 
I just grabbed a test light and started looking for my wires. I suppose you could use the power and light wire to the stereo. For a ground I would use the bolt that holds the gauges to the dash.
 
For 1966, there is usually a yellow three-prong female plug near the fusebox that is ACC power. It's normal use is for radio and the backup lights. This is the most appropriate power source for your purpose.
 
When I needed power I used a little terminal strip that was powered by a relay. The relay was turned on by the acc and the power was fused. It powers my stereo, gauge lighting, and wideband.

It allows me to run pretty much what I using only one of the ACC wires. It is also fused and is not drawing current from the dash harness.
 
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