We're doing a few trips this year through areas with poor cell phone coverage. I'd like to figure out a way to boost my cell signal while driving through those areas (better maps, ability to make and receive calls in case of emergency, etc.). I was looking at some signal boosters and the like from WeBoost (formerly Wilson). The external car antennae all seem to require roughly a square foot of metal on the roof when placing the magnetically-mounted antenna up there. Since I have a pano roof, this doesn't seem feasible. Has anyone found a way to make this work - perhaps with another manufacturer or type of antenna, or on a different location on the car? Thanks.