I have TMG on the Thunderbird and mounted them at the upper far ends of the plate holder area.
Are you currently running a Radar Detector and if so, which one? Using any other available counter measures similar to the TMG like CB, Wazes, Scanner, etc?
I am the perfect example that old dogs CAN learn new tricks! This Forum is packed with tons of useful information from best detector for where you live and drive mostly (so far there is NOT a single detector that is best for everyone/everywhere), proper mounting possibilities, additional counter measures, fast but intelligent driving habits, and of course @Vortex videos!