I'm not quite sure what you were getting at with that, but all I want, is for the gauge lights to come on with the parking lights. The type of gauges I'm getting is just positive, and ground. I think I can splice the positive wire into my dimmer switch, I just want to make sure.siragan said:Um... way too little information. If you want an ignition on B+, then the "correct" place to go is to the fuse box in the engine bay.
Ok, I guess my question is, is there somewhere that can be explained to me that I can wire my gauges so that they come on with my parking lights?siragan said:Yeah... the way dimmer switches work in cars is that they have THREE leads going into them. The leads are as follows:
1. 12V ignition - in
2. 12V ignition - in
3. Ground - out
What happens is this: one of the 12V ignition wires goes in and ALWAYS stays 12V. The other 12V in is connected to a rheostat which is grounded via the ground wire. When you adjust the rheostat, the voltage of the second 12V in drops, creating a fluctuating potential difference between the 12V constant and the 12V connected to the rheostat. Capiche?
You can build your own one if you want, it's very simple once you understand how it works. All of this information is in the wiring diagrams in the back of the haynes's manuals.