I can't remember if it fits the sony, but it fits all of the other units so should be fine.
They only do 1 lead - so you buy the one labled fiesta / fusion. Basically, you remove the stereo, and push it down into the passenger footwell, then tuck it behind the trim upto the gear stick.
If you pinch the sides of the gaiter, it lifts out - and you can thread it through, and out by the side of your seat.
Can't remember the code off the top of my head, but price from the dealer is £15-£20
They only do 1 lead - so you buy the one labled fiesta / fusion. Basically, you remove the stereo, and push it down into the passenger footwell, then tuck it behind the trim upto the gear stick.
If you pinch the sides of the gaiter, it lifts out - and you can thread it through, and out by the side of your seat.
Can't remember the code off the top of my head, but price from the dealer is £15-£20