I am going to install an Autometer dial gauge in the round coin holder on the dash and I want to see if others have done this. If so, where did you tie in the vacuum line? And where can I get power that ties into the other gauges for lighting? Any help is appreciated, thanks in advance.

 

You can use any of the manifold vacuum lines, and you can get power from the fuze box.

But why a vacuum gauge?

 

Thanks for the info, I tested the wires attached to the back of the coin holder, and it works based on the auto dim just like the dash, so I will be able to use that, I hope. I am hoping I can use the gauge to increase my MPG. I had one on my last truck and it seemed to help by watching how much the vacuum dropped on acceleration. I already had the gauge and I hate that coin holder any way.