Did a search and no recent threads..... We bought the TT late last fall. Didn't really spend much time putting her away properly. I'm guessing the powercord is most likely where they got in, but ...
local farm store buy fresh cab, works good . BUT YOU already have mice so you gotta catch them ALL . traps etc then plan B to keep them out. never heard of coyote pee but sounds good .might try that in my shop.