Once I had the car and had driven it for a couple of weeks to make sure that it wasn't a lemon, I decided to make some improvements to it. As I had never changed anything more complicated than a headlight bulb on a car before, I started small.
The rear windscreen wiper had the little cover thingy missing, so I replaced the wiper arm.
The driver sun visor wouldn't stay up (someone had stuck a mirror tile to it

) so I replaced it with one from a cdx with the built in mirror. I didn't wire it in, and I didn't get the passenger one, so they don't match at the moment, but if that really starts to bug me I can do something about it later.
By this time I had owned the car for about a month, and the engine light had started to come on whenever I drove it, and the car was always in limp mode. After a bit of digging online (including finding a certain Cav owners forum) I traced the problem to the camshaft sensor. This didn't surprise me as when I bought the car I did see that the sensor was being earthed for some reason (see picture). After one false start where I got the wrong sensor (the one with the old plug) I got the correct sensor and fitted it. The job wasn't too difficult, largely because rather than remove the drive belt and do a proper job of it, I simply pulled back the timing belt cover and worked underneath it. Overall this was not a fantastic idea, and resulted in rather sore hands, and a lot of swearing when the bolt that holds the timing belt cover bolt to the engine sheared as I was trying to screw the whole lot back together. I have since been told that it is stuck in there, resulting in my timing belt cover currently being secured by tape. Not ideal, but it seems to be doing the job for now.
I had also decided that I wanted to wanted to fit a trip computer, so I decided to get behind the glove box and see if I could find my little yellow plug, to see if it was worth my while looking further into the possibility. I was very pleased to find the plug straight away, but much less pleased to see that in the past something had been powered by taking a feed from the glove box light, and that when what ever it was had been cut out the wires had simply been tucked out the way, despite the fact that the end of the live wire was exposed (see photo)

Needless to say I striped the lose wires out properly and re-insulated the glove box light wires straight away.