Okay.
I have a used bike that still has the old Garmin Zumo 550 Power Cable installed.
I also have an old Garmin Nuvi 255W that uses a Mini USB for a power cable.
Is there any converter plug that would plug into the old Zumo power cable and convert to the Mini USB power cable?
I have already installed the 255W in a techmount / ram mount but the power cable is a cigarette type plug and of course vibrated out every 20 minutes or so.