I have a 1991 9000iS (old shape) in the UK. The headlining on the underside of the electric sunroof has come loose in one corner and is hanging down. It appears to have been stuck to a plastic or fibreglass sheet in the sunroof, but it's awkward to get back because I can't separate the plastic sheet from the mechanism. Can anyone suggest how to fix the headlining back? I tried Halford's double-sided tape for trim, but that lasted less than a day. My Hayne's manual says 'go to dealer' for anything to do with sunroof, but I think not!