12v accessory power for boost gauge

I know there's someone on here who has wired up a boost gauge. I've asked on other threads and sent PMs to some people and nothing. I'd like to knock this out tomorrow. I'd like to be able to just tap into switched power under there but I don't know which wire would be best. I know one option would be come from the interior fuse box with an add a fuse but I think that may be over kill for the backlighting on a gauge.. Plus I really don't want to try and fish wires from driver to passenger side behind the dash... The ground is already made up to a factory ground point. I just need one hot leg to tap into. So where is the best place to tap into switched power (preferably driver side)??

sorry, had stuff i needed to take care of. white/orange is ignition on the left side of steering column. black 7 pin plug.

Okay thank you!

The Car Stereo Company said:

sorry, had stuff i needed to take care of. white/orange is ignition on the left side of steering column. black 7 pin plug.

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By left side of steering column do you mean I should remove the bottom cover of the steering column?

safest way. but you can find it in the harness underneath without taking it off. you need to be careful though, couple different wires with the same color

I got it now. Thanks for the help I really appreciate it. I tested it with a voltage tester before I removed any insulation. No power when key is off, and hot when you turn the key on. Thanks again! Never would have found it without your help