Help Sunroof wont Close -Fuse keeps blowing

[HoustonM3]

Hey guys , my 85 300D's sunroof has been working fine but has been a bit sluggish lately. It is cold here in Houston so I figured i would greese the track ect ect when it got warm. Well yesterday I opened it some and it would not close so I checked the fuse which was old and was blown. I put another fuse in and it worked for about 5 minutes then blew that one. I purchased some new red fuses 16 amp from the autostore and I can get it to move a few inches then the fuse blows again. What gives? Do I need to get a ceramic fuse or is this a bigger problem? It probably blew 5 fuses and is still open some as we speak. HELP ITS RAINING.