no point, needs to be bone dry to do properly!
wait to dry for a few days, will with oil/waxoyl mix and then plug top
when mine was gettin a wet foorwell it was cominh through the gromet in the bulkhead where the wiring loom comes through just under the washer bottle.. was full under bottle with leaves n crap.. cleaned all that out and sealed round gromet with silicone...
Campbell we ARE NOT pulling your dash out to find this leak...
Does it have a sunroof ?