How to power a GPS?

[Noreg]

Is there any switched power that I can use? I was thinking of using the fusebox but then I realized its battery powered (I think).

Should I just plug it into the battery and use a relay?

Id prefer if it didnt drain the battery while the bike is off.

[Rich82GS750TZ]

There may be a brown wire inside your headlamp bucket that isn't doing anything. It may be switched, you'll have to test it. There will be other wires in there that you could tap (headlight)
you need a wiring diagram, download one from BikeCliff's website.

[fastbysuzuki]

Is there any switched power that I can use? I was thinking of using the fusebox but then I realized its battery powered (I think).

Should I just plug it into the battery and use a relay

I would go with a relay ( the orange/green wire from the brake light switch is good to power the relay comes on with ignition well it is on the gs850) and connect to battery for power. Making sure there is a fuse between battery and GPS

[cowboyup3371]

I have mine going into switched power and it works just fine

[salty_monk]

The color wiring diag for your bike doesn't work but should be the same as the 850G or very similar

http://members.dslextreme.com/users/bikecliff/images/80GS850GT_wiring_color-new.png

You can see there is a brown that terminates off a T. It's switched. In reality that will be in your headlight bucket & there will be a spare black/white in there too.... For a GPS which probably charges at max 1amp I think you'll easily have enough capacity to charge it using that circuit. To be extra safe you could add a small inline fuse.

If you really want to run a relay you should have a spare "always" on in your fusebox. It's the bottom one & should have screw connectors. You can use that to feed the power to the relay & switch it with the brown. If you are going to add a relay you might also think about doing the relay mod for the coils and / or headlight / horns.

Your manual but not colour: http://gsarchive.bwringer.com/mtsac/.../gs/GS1000.pdf It's a page near the back. You can see the Brown (BR) off the ignition switch & then terminated the same.