Is there a 12v key-switched power wire in the headliner?

[jeober]

I'm installing a GPS receiver to bluetooth with my T-Mobile Dash and want to supply recharging power to it whenever the ignition is on. Is there a wire in the headliner area (near the map lights) that carries ignition-switched battery voltage?

 

[nserpa9248]

if you have a sunroof (the 4th gens had sunroofs right???) then you should have a switched power wire there...

If not, its tough...see if there is anything else that turns on/off with the car, and test the wires with a computer safe multimeter..

 

[Kmvreter]

I'm installing a GPS receiver to bluetooth with my T-Mobile Dash and want to supply recharging power to it whenever the ignition is on. Is there a wire in the headliner area (near the map lights) that carries ignition-switched battery voltage?

Sunroof like mentioned or if you have a compass mirror?
Then again, why worry if it is switched? Constant power works fine too because it will draw very little until it is actually fully charged and then not draw at all (this may also be better for the battery in the GPS/bluetooth unit.)

 

[jeober]

I have an SR5 without those options but perhaps the harness wiring is in place.

Yes, I could leave it on full time charge. But my preference would be to charge it when the ignition is on.

Thanks for the ideas.