I found the wire bundle that runs up the side pillars in my roadster. They would be the easiest for powering my radar detector. Am I safe to assume that the red is + and the black is -.

The only problem is that I'm betting they do not shut off with the key off. Does anyone know if they do?

Thanks!

 

I was wondering how I might do this as well? I was thinking of trying to tap into the power that is used for the garage door opener and mount the detector just under mirror.

Please keep me posted on how it goes for you.

 

Okay, I bit the bullet and bought a multimeter.

For an '05 ROADSTER in the driver's side windshield pillar, the tan wire with green bands is a switched 12V line.

After I knew that, I followed an excellent FAQ on radar detector install from this thread:

https://www.crossfireforum.org/forum...ead.php?t=4549


Works Great!

 

Does anyone know if this same wire or which wire is the switched 12V line in a 04 Coupe ??

 

OK HERE IS SOME USEFUL INFORMATION: UPDATED

See the link below to see where to access this and illustrations on how to.
http://www.dfwsbr.com/crossfire/faq/radar/

There are 6 wires of different colors.
The one that has the green stripes around it is the "SWITCHED WIRE" which means it only has 12V power going through it when the ignition is switched" to "ON/RUN".
This is ideal for direct wiring radar detectors. You can then connect the ground wire to the bolt in the chassis down beside the fuse panel just inside the drivers door.Be sure to remove the paint where the wire is connected.
You need to pull back the trim strip inside the door (photo 4 shown in link)

 

FYI-Brown is ground on these cars.