Hi Rick.
I qso'ed with you on the 146.91 machine this week as you were heading thru Willmar on the way to Tyler I believe.
I was always able to pass the coax of my roof mounted magnetic 2m antenna thru the seal of the hatchback or trunk without trouble with leaking.
A BNC end to fit the hand held radio and your signal will rock by comparison.
73
Mike? N0QBH
N0QBH Mike Berg