I got these
gauges from ebay and they came with a power inverter and an on/off switch. The power converter has two leads, red and black so im guessing power and ground. Where would i splice these wires with for power, should it be the dimmer switch so it comes on with the headlights? I have no idea what kind of voltage it requires, the package didnt say anything. Also, one of the gauges got a little dirt on it and scrubbing with all purpose cleaner isnt working, any suggestions to clean it up??

Thanks alot

 

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