My stereo has extra USB ports on the back, so I have extra power hiding in the ashtray. It's handy. 

Jeff

Sent from my iPhone

> On Jun 19, 2015, at 11:50 AM, William Monk <billmonk@GMAIL.COM> wrote:
> 
> For not money you can purchase a USB cord with just the leads on one end. I
> would wire it to a switched power that turns on/off with the ignition.
> That way you can take advantage of the GPS auto off feature.
> Make sure it's fused. Doesn't draw very much. Use a low amp fuse.
> 
> Bill