I plan to caulk mine shut. THe repair estimate was $9k.
Have a helper spray water around the sunroof while you look at the inside for any leaks. When the leak is found, then the area can be checked for any loose parts or gaskets that are bad and need replacing.
A common problem with the 2000 Toyota Camry is sunroof drain clogs and leaks. These can be repaired through the dealership.
does the rear sunroof glass have drain holes
A leak in the sunroof is the most common cause of leaks/damp in a 106.
repair it or get a new one.
Working on the sunroof is very hard to keep from having leaks afterward. I suggest taking it to a trim shop that has experience in this. CAll for a couple of estimates I had the same problem,its less expensive to just get a bit bigger sunroof installed to cover the hole that was already there, so you wont have leaks or any other problems. call for estimates
repair the leak
Find where it is running out and repair the cause.
In your sunroof there should be 1 hole in each corner. These holes act as drains for the sunroof. Every sunroof leaks, the drains let the water drop out of the vehicle at the bottom on the underside. Your drain holes are probably just plug up, maybe with leaves or something. Grab an air compressor and a hose and just blow the blockage out.
There are commercially available sealers made.
I you happen to have a sunroof--check the two drain plugs which you can access when the sunroof is open. thry may be clogged. there are plastic tubes that run downward, which a wire can be inserted into to clean them out. hope this helps out.