Hi All, On the subject of GPS reception on the bus. I've found that reception varies a lot depending on two things. Some of our busses here have fiberglass roofs and some have steel roofs. This combined with the various window treatments does definitely make a difference. I always sit as close to the driver that I can on the opposite side of the bus. Sometimes sitting that close to the big front window makes a difference depending on which way we're heading and the location of the satellites. Happy traveling, Gil Lutz