I've been giving my issue with SWR a lot of thought, and i think i'm gonna swap out the RG58 coax for LMR400 and see what happens. I have some extra laying around, and at this point i have nothing to lose. I think i may have gottten some crappy coax. It's the one thing i haven't tried yet. I'll use a short piece of something a little more flexible once i get into the cab and see if that improves the situation. K4LMP, What kind of power are you putting through your mobile??