I have a 1989 c4 cnvrtbl that has developed an issue??? the door chim comes on at its own will when the car is shut off key in or out...it will chim rapidly then chim every half minute or so all night long etc.. no ryme but sure there is a reason. the only way to kill it is to disconect the battery or to pull the 15amp courtesy light fuse. Can anyone help me plz??