Cheers guys, I ran an earth to a bolt just underneath the centre console as when I first installed the Pioneer it would not fire up and I read on here that it needed to be earthed. After I installed the unit and found it was VERY quiet I got 2 RCA boosters, well I got one for the front then realised I need 2 to get the balance right. I earthed both to the same point on the chassis.
TBH I dont want to go digging around back in there as I got seriously when I installed it all, I was just wondering if I could quickly insulate any certain wires etc?
Anyway thanks for all the help, I may be changing the front and rear speakers so if I do I will get a pro to do it and rewire, and also sort this issue out at the same time