Regarding the illumination... each little bulb is secured in a little plastic cap that twists onto the PCB. I encountered two problems, the first being that nobody could provide me with the bulbs Volvo used (they're bulbs not LED's) so I had to go for one that is basically the same but a few mm taller. The problem with this was (once I managed to twist the wire's around and fit the bulb into the cap) when the facia of the CD player went back on, it would push down on the taller bulb and prevent the wires from making contact.
Second problem, those little caps are very easy to break! And once they're broken, there's not a hope in hell of getting the cap to apply enough pressure to make contact on the PCB. In the end, i gave up on using the caps and just soldered the globes directly onto the PCB.
That was about 6 weeks ago and they're still going strong. My advise - don't waste your time with the caps, because they're just not going to work. It wasn't a hard soldering job and if the bulbs blow again it won't be hard to remove them.