Firstly I apoligise for starting a new thread on this, but most appear to have found the problem.
So I have a parasitic drain of 0.5A.
I have pulled all fuses, all the relays I can find and the FSR which is a common fault. Still have the drain.
Anyone ideas where I go next, short of checking the entire wiring system. A friend mentioned the Alternator diodes can play up and cause a draw but not easy to get to.