Lol, I'd like to try a few things out before going ghetto fabulous and start gluing kitchenware to the car. I could consider getting a much shorter cable and mounting to the front bumper though...
I do understand what you're saying about going ghetto
LOL, sorry I didn't explain.
The pie pan (absent of a metal roof) should be there anyway for optimum performance.
Even though they sell these magnetic no ground antennas it robs the signal.
If you're going to mount to the frame which is what most people do it is a moot point.
I myself have a flat piece pie pan (grounded) with a magnetic mount that gives me the best the radio/antenna can deliver.
Rather than destroy or rip an antenna off it just gets knocked over and then set back up.
Coax has to be in 3' increments to work which is why you end up with extra to deal with you can't just cut it to perfect size.
Anyway...this doesn't have to be perfect science unless your'e and old radio head that desires perfection, but it will all sure make a difference on operation when all are scratching their head wondering why one radio setup out performs all the others when they have what they think is the same setup/install. Radios are why more complicated than most people realize and the vendors don't spend a lot of time explaining, most of them are not that schooled either unless they are a professional radio shop. Without naming brand or companies the one that most people here buy from I don't consider as such (my opinion though).
If you're not trying to talk for miles away and just communicate with the group you are with almost anything works...including a hand held