If you look at your engine bay, look as close to your Stereo as possible. Located roughly around that area. Pretty difficult to describe, if you don't know what your looking for.

Are you having doubts about having a turbo? lol
 
I'm old and it makes me think of reversed baseball caps and tracksuits and southerners and white people calling each other bruv ,even though they aren't related and cruzin and a guy at work that thinks he's black even though he is white and has a maid at home and talks to his mum and dad with a plum in his gob,
nah fence bruv ;)
 
nah non fence takin son, well considering ALL your comments i can only imagine dont get out much from shropshire, and as its all contryside and roundabouts, im guessing your heads in a bit of a muddle! no "fence" me ol'' codga!