Quick help with Gauge install wiring

[92Patrol5.0]

Ok, I hooked my gauge light up to the light for the heater/fan controls above the radio. So the gauge lights will come on when I turn my headlights on. My question is this. On the back of the gauge, the terminal that says "to ignition switch".... where to I connect this to? Does this connect directly to the battery like my stereo amp is wired? Or do I connect it to an empty fuse terminal in the fuse box? I'm a little confused about the ignition wire, and the wire they say to connect to a 12v source that comes on with ignition only.

 

[giddyup306]

To a fuse terminal that has no power when off and power when on.

Good luck.

Mike

 

[NYC LSC]

Yup. You want it hooked to something that gets power only when the ignition is in the "run" position.

This might help (or not lol): http://hp.autometer.com/instruction_download/instruction_download.html

 

[92Patrol5.0]

I found that there is already a power wire with a fuse hooked into fuse terminal 12, which is an unused terminal. If I wire the gauges up to this will it work? I assume if I hook it up here it will have power to it when the ignition is on, but once I shut the car down it wont? Also, for the engine ground, can I just connect that to the inside of the fender where the small wire from the negative battery cable is bolted to?

 

[giddyup306]

Off the top of my head I couldn't tell you. Get the ol test light out and check for voltage when on and off. For the ground just find a screw on the body and use that. It's much easier.

 

[92Patrol5.0]

I assume I can use the same power supply for both gauges? Or do I have to have separate wires for each? I can just connect the two wires for the gauges and connect them to the fuse panel right?

 

[HISSIN50]

I assume I can use the same power supply for both gauges? Or do I have to have separate wires for each? I can just connect the two wires for the gauges and connect them to the fuse panel right?

most folks run one 'source' wire (i.e. your wire that is key-on hot from the fuse box). you can run the wire to the first gauge and then piggyback off the connection there to run a short wire to the second gauge (and so on). i think you are asking if you need a dedicated wire for each gauge, and the answer is (in most cases) no.
good luck.