So, I'm trying to install neon lights under the dash in my '08 GTS. I used to have them set up so that they came on when the lights in the gauges came on. Easy stuff. I took them out at the beginning of summer because the adhesive on the back of the velcro I was using didn't like the heat. I came out to get in my car one day and had a bunch of wires hanging down around my feet. I'm going to use zip ties this time.

Anyway, I tried wiring them in with the dome lights (I'm using one of those fuse add-in things, btw), but even when the dome lights go off, the neon lights get power all of the time.

My question is, is there another fuse I can tap into that will make it so the lights are only on when the door is open?

 

You actually only use the ground cable as a switched power , so use a constant power wire and the trigger will be the ground from the dome light .