garmin gps dash mount alternatives for sunction mount. If you frequently travel to California for business trips and according to their state law, you cannot use garmin gps suction mount on the windshield. I probably need to use the garmin nuvi gps dash mount, however I think the dash mount that Garmin uses a strong adhesive and it might not come off easily from the rental car and once I use it, I might not be able to re-use it. now I find a gps mount alternatives available …