[66Sprint200]

Ok, now I'm confused. A couple months ago, I asked a question on here about where to get power for my new parking brake warning light. I was told find a circuit that is only "ON" when the car is in ACC or RUN. Well, I found this link -http://mustangmonthly.automotive.com/44035/mump-0404-ford-mustang-dealer-options/production-parts.html- and it says that they connected it to the back of the ignition switch. How does that work? Wouldn't it stay on constantly?

[Dave]

That's only the power source for the switch that mounts on the parking brake. Paragraph 16 from those instructions.
Dave

[66Sprint200]

Yes, but wouldn't it stay on while the car is sitting in my garage unless I release the handbrake?

EDIT: Well, looking through my wiring diagrams, I will just put a male connector onto the power supply and I will use the accessory plug that the radio plugs into.

[Veronica]

Hello. It would best to hook it to the back of the ignition switch. There is a threaded stud sticking out of the back of switch that has power on it when the key is in the on position. That;s where the gauges get their power. Just take the nut off the stud, put a ring connector on the power wire of the light, slip that onto the stud and put the nut back on.

[66Sprint200]

Oh, ok. I thought that stud constantly had power. Thanks for clearing up my confusion Veronica.