Garmin 396 Glitch??

I had never had a problem until this weekend when I was out on a
joyride with a friend. My 296 lost signal twice withing minutes. The
first time, I just double checked the anntena connection and it seemed
to come back (this is the suction-cup antenna). The second time, I did
the same thing again, no joy. Waited a bit, and then realized that the
excess cable from the antenna was balled up in and around my headset
cord. I picked it all up and shoved it on the dash and the signal came
back immediately. It didn't drop for the remaining 45 minutes.

Some sort of interference?

-ccq