rodent odor problem in my 69 cuda

hi has any one had a problem with a rodent nest being built in there car? i bought a 69 notchback last year and have took it completey apart, found that the cowl area on both side of car was packed full with a nest that i think field mice built, i took out the complete interior, removed the dash and heater box and air tubes into the under side of the cowl panel removed all for the nest i could see, used bleach and sprayed all areas of the car, but still had the rodent smell odor, i just tried using lysol almost full strength but it seems to still be there, i want to take care of this problem before i start to reinstall the interior, does anyone have any other this to try or have used???????????:cheers: