Posting this as information that might help someone, and then as a bit of a rant. First the good: Was replacing the side indicator light (the one mounted on the front wing) - not sure if this is the case on all cars, but on mine (2016 ex academy car) the cable is routed through the hollow wing stay arm and pops out a hole near where the steering arm connects to the wheel. The hole it comes out from is quite small, but it turns out that a 3mm crochet hook is the perfect size to hook the wire and pull it out of the hole. Took 10 seconds to sort (after 10 mins or trying other things). Now, the bad. Bloody seat bolts. Whoever had the car before me replaced the bolts that go through the seat runners and bolt it to the floor with ones where the head is much smaller than the width of the runner. So, when I undo the nut from underneath the car , as soon as its loose then the bolt just spins as I try and loosen the nut. Cue hours of reaching under the seat to try and grap the bolt head to stop it spinning as I loosen the nut. Given I don't fancy paying for new seat runners with captured nuts, I'm going to replace the bolts with ones that have larger heads (probably T headed bolts) so that they catch on the sides of the runners when I tighten the nuts underneath. At least installing the replacement radiator was easy enough.