Where to get power?
Remember, the cigarette lighter looses power when the key is off. When I put my "A" pillar gauges in, I tapped the large size solid blue wire coming down the steering column from the ignition switch. This is behind the plastic cover under the wheel held on by three screws and two clips. This also turns off when you take the keys out. On my '98 truck, I have a second accessory plug in the dash that never looses power if that's what you need, then tap it.