I had to switch to a license plate mounted ezpass transponder this week and ditch the windshield mount tag. The interior tag was only working intermittently, I even swapped it out for a new one twice in the last 3 months, and tried different mounting positions on the glass, and still it was intermittent. It was driving me nuts, I must have about 5 violations in the system right now.

I don't know the cause, but this summer I started having problems, I don't know if ezpass did something with the readers at the toll booths, or the tags wear out sooner than they used to, or the windshield tint is a problem with new tags, but I never had a problem with my '01 or '04. The license plate mount works great.

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You have your way. I have my way. As for the right way, the correct way, and the only way, it does not exist.