[72 GMC Longstep]

I could still smell the mice stench, so I thought the heater might have some mice remnants in it. As well the heater control cables didn't work to well and seemed to be stuck. I borrowed a boroscope from work and stuck it into the heater box and yes there was a dead mouse in there. I decided to take the heater box completely apart to clean it properly. What a job that was - inner fender well, hood hinge, etc to get it completely apart. I found at least 17 mice skeletons and a nest. The little buggers even chewed the heater fan. I got all that cleaned up with more spray nine and got rid of the smell. The heater cables all work now.