I haven't had any mice in my cars but I just moved in a new construction home and started hearing them in the walls and attic. I tried all the stuff from the local hardware store (e.g. glue traps, bait traps, ultrasonic devices, poison, throw packs).
I had some success. I carried out two on...
I'm 6-1 and put the overland steps on my Rubicon mostly to avoid rock damage after a 3 inch lift and 35 inch BFG AT's. I don't have a problem getting in but a pain getting out. I hit the back of my calf if I step over them and it's awkward if I step on them getting out but I can live with it.