thili

Can someone help me out. I am from Malta and here the roads all have bumps and recently my escort mk5b boot door started squeaking and it really annoys me. At first I thought it was the shelf but I removed it and also the speakers from the side panels. All I am left with is the boot door. Can you tell me any ideas of what can I do to make my Escort Mk 5b run as smooth as it was without squeaks in the back???