Where to get GARMIN NUVI Power Jack Repaired

I have a GARMIN NUVI 54LM that seems to have a problem with the power-jack. Everything else works find but I can’t connect it via USB cable to a power source or to my computer. Does anyone have any idea where I might go to get this repaired? Batteries Plus said they couldn’t repair that particular mode. I haven’t check with Garmin yet. I was hoping there might be a local business that does this kind of repair.

P.S. I did buy a new GARMIN DRIVE 50LM but it sucks!