So at the minute it seems I have water getting in the car from everywhere!! One of the sources was the scuttle tray vent for the heater blower air intake. The foam had perished and was letting water in, and dripping down onto the passenger footwell! I found a replacement on flea bay but being the tight a**e that I am I thought it was a tad expensive for a bit of foam!

....... So insted I bought some of these

..... two birds with one stone! I only needed a sheet, the remainder of the pack got the little un out from under my feet while I tinkered. Soooo, I the cut strips out of the foam, 15mm in width each....
........ stuck them down around the vent, and simply trimmed around the edges.....

The good thing is you can also build up the layers to get a better thickness all round, and a better seal when you put back on the car. I used 3 layers in all and the result is actually a lot better than I thought. The foam I got of flea bay although cheap, is good quality, and probably a lot better than what you'd get if you bought the proper pre-cut OE stuff! Happy days!!