^^Ok, I think I understand most of what you said, thanks. My race car is a full-bred race car, so setup is a little different. I assume the OBD-II has to plug into an OBD-II outlet in a normal car? If so, then that is out of the question for me. And as for the GPS bluetooth (like TomTom's Iphone holder?), does that just need power and that's it? Sounds interesting, I might have to try one of these.
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