Thanks for all the suggestions. I ended up running the antenna wire, as I planned, up along the a-pillar and then along the top of the windshiled, under the plastic trim the whole way. Then, the antenna head comes out in between the rearview mirror and the windshield and I've got it secured up against the windshield. Reception is good, I've only had one quick 1 second interruption in the past day of driving. Anyway, just thought I'd update, in case anyone was interested.