Mazda 8oy

I need some help, I just switched my stock clutch with a 6 puck. After this I have been having electrical problems. Main problem is my cd reciever will cut out like the cd is scratched. (Did this on a brand new cd). But I can still hear the bass coming out of my subs perfectly any ideas? Plus also my oil pressure gauge is off the scale. It does this before I start engine? Anyone have any ideas on why my Rex is going crazy?

version13

Could be just a problem with your alternator putting out too much power. Mine used to do that.