Thanks matey, ur rite it was the fuse in the radio that was blown so got it working!!

As for the bottom end noise its defo not as high up as the cams and it doesn't appear to be the manifold gasket from what i can hear, its def comming from the bottom end cuz i can hear it if i listen at the sump. Is this just a harmless noise that happens with some omegas or have i a timebomb waiting to cost me a fortune?

Cheers matey, uz are all a great help!!

P.S I hear fitting 3litre cams and a chip makes a real difference to the 2.5's, is it worth doing and where could i get a set of 3 litre cams?? :-?