I have a Defender TD5 XS 2004. While on holiday last week-noticed that the lock in the front passenger door handle is missing. The 2 middle handles have blanking plugs and the driver handle has the normal key thingy. Now my question is- should the front passenger door have a key bit or a blanking plug? Cant seem to remember what was in it before. Also wondering if it just fell out, as landies are prone to do- or did some blighter try to gain access ?