Not sure where you live but if you have to deal with dust or road salt dust, I like mounting mine on the roll bar. The cost of the mounts is about $4.00 or $5.00 at Home Depot. Go to where the chain link fence stuff is and buy the hold offs (2) (that hold the fencing to the post), bolts and nuts to go with them. Everything is galvanized and mount to each roll bar post in the rear. On rainy days it will be inside your rear window. Or you can spend the big bucks and have it rust up on ya.