A local carlot brought a S-10 truck by that has 2 factory decals running down the center of truck , originally I think they were a matt silver decal, now they are dried and cracked in most places, looks like alligator skin, in some places the entire vinyl portion is gone, and all that remains is the adhesive portion, it almost looks like a additional clearcoat on top of original paint, the decals are dry and rough, is there anyway to remove them? any input would be appreciated, thanks