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Garmin Zumo 390 fitting

1998 Views 3 Replies 4 Participants Last post by  Deano968
I'm just fitting one of these to my bike. I thought it would run off the usb under the seat, but to my surprise there is a power unit in the box which needs linking in to the bikes general wiring.
Do i need this, or will it run and charge just fine off the mobile phone USB socket already on the bike?
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I connected mine directly to the battery, running the wires under the tank (I didn't remove the tank, just lifted it and cable-tied the Garmin wiring along the inside of the frame). You have to be aware that it draws from the battery even if the bike is switched off this way. I only use mine on the road traveling along so this doesn't worry me - generally I take it off when I get to my destination which you'd probably do for security reasons anyhow.
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