Since i got my head unit installed yesterday it seems that the cruise control has shat itself completely, could this be linked to the head unit install, maybe the guy ****ed up some kind of electrics? not sure

another thing is when ever i seem to change up gears especially from 2nd to 3rd i get this jolt forward, never happened before. I'm a newb so the only thing i could bloody put it down to is that some kind of fuse is blown or the ECU is effected, im so pissed off because i used the CC to get to this place and the moment i drove out, car felt different and CC was buggered.

Any help/advice is appreciated guys

Cheers!