I personally would try mounting the antenna in the center of the windshield right behind the mirror off the the passenger side and see how that works. Use some double sided 3m tape, not the cheap stuff either, you'll thank yourself if you ever need to remove it. Either that or see if the antenna gets a strong enough signal that you can put it under the dash pad up by the vents. While it's not the easiest thing to do, not seeing any wires is in my book, always the best option. Good luck with the install.