Just thought I'd chime in here. We had mice in our cab (1680) last year, chewed thru the heater hose where it goes around the corner on top of the cab. Big nest above cab. Cleaned everything out best we could after fixing hoses and wiring (Grrrr) and sprayed with MrClean, I believe. Then to get rid of the smell, I fresh ground a bunch of coffee, and spread that everywhere, in cab and in the space above the cab. That did wonders for the smell!! Thru some bait up in that compartment above cab, and this year didn't notice any mice, but AC condensation was dripping in cab, so opened up the top, and sure enough, the bait had been chewed on, and the condensation line had been chewed thru!! but the bait must have taken care of them! If they had chewed the heater line off again, Oh Boy!!!