The Mégane II Owners' Club

I have a Megane Convertible and both of the front windows require the temic units replacing.
After searching on e-bay and finding the replacement units for the Megane, none of them are suitable for the convertible model.
Does anybody have any contacts or ideas as to where they may be purchased?

Do a search on eBay, there's a guy who repairs them for around £30,