This is where the confusion comes in...
324.43513 Carrying, transporting, or possessing firearm, slingshot, bow and arrow, or crossbow; hunting
license not required; carrying or possessing unloaded weapon.
Sec. 43513. (1) A person may carry, transport, or possess a firearm without a hunting license if the firearm is unloaded
in
both barrel and magazine and either enclosed in a case or carried in a vehicle in a location that is not readily accessible
to any occupant of the vehicle. A person may carry, transport, or possess a slingshot, bow and arrow, or crossbow without
a hunting license if the slingshot, bow, or crossbow is unstrung, enclosed in a case, or carried in a vehicle in a location that
is not readily accessible to any occupant of the vehicle.
http://www.legislature.mi.gov/documents/publications/firearms.pdf