Quick Fuse ?

i believe the fuse your talking about is the heater-ac blower motor fuse turn the heater/ac fan on and see if it blows air out the vents with it removed if it doesnt that what the fuse is connected too and the heat/ac blower motor is the only thing that fuse is connected too.the wire attached is probably your problem it sounds like someone tapped into this fuse to power something else like an amp or some other device which may be drawing too much power which is causing the fire because the wire is'nt run thru the fuse i would insert the fuse without the wire and find out what the wire is connected to and install it properly(not connected to a fuse in the fuse box) and with proper fuses inline. repost and ask how to wire whatever is on the other side of that wire these guys will tell you how to do it properly....