[evomind]

Oh, mice dont like moth balls. They also dont like those things they put in urinals.
Is your car parked outside? If so it will always be an attraction.
If its in the garage line it with those urinal things and mothballs and try to keep them out the garage. Make sure all cracks are sealed.
If its outside not much you can do. The car provides shelter.
Where Im at we have to keep our hoods open because in AZ they go under the hood to escape the sun so by opening the hood they dont have much cover so they move on.
The goal is stopping them from getting inside the cab at least. Their access hole is probably where you found him. Try to seal the hole with silicone or something.
Lifting the trunk/frunk probably wont help much on these cars....
Good luck