Hey guys, I've had an idea floating around in my head for a while, and I know next to nothing about cars, so I thought I'd ask here:
I use a Garmin GPS unit all the time to get around. Right now it's mounted with a suction cup on the inside of the windshield. The battery doesn't last long, so I always keep it plugged in to the cigarette lighter, which looks ugly and the cable gets in the way. Plus, the suction cup will fail at some random point & the unit will come crashing down.
I was thinking how slick it wold be to permanently attach the GPS unit to the dash, right above my steering console or above the stereo, and then drill a hole in the dash to feed a power cable inside. Could I tap into the car's internal power supply, say by splicing into the stereo's source of power?
Here's a mock-up to illustrate what I mean:
(The hole is in an arbitrary spot; obviously I'd need to avoid cutting in the any of the AC piping or any other critical infrastructure.)
Thanks.