Well finally last week I took it to a good sparky and he found that there was a short. The short was in the cabin just behind the fuse block and a wire had rubbed thru to steel some where. But my stereo still cuts out every now and then, I also notice the clock dim as it happens. I will be taking it back to get that checked. After putting up with the issue of dimming lights underload and random stereo cut outs, I had had enough. I was going to take it back to the sparky that lloked at it last time but I found out he had shut his doors. But my mate a mechanic told me it sounds like a earth issue. So I looked at all of my earth wiring but there was nothing I could see. So I gave them all a bit of a bend and wriggle around. The bigger ones made alot of crunching sounds. Which I thought was weird but since then all of the dimming and cut outs have gone for at least a month and still going.