A number of our clients use the hard case transponder and mount it inside the vehicle on the top of the windshield and we are happy to help you determine the right spot to place the transponder once you have it! Give us a call at 984-287-5400 with any additional questions!
Very few vehicles need an external transponder as there are no tolls in the city per se. I would try either the hard case transponder if you travel on the east coast and use other tolls or just get the free sticker transponder and try it out.
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