This instructable shows how I reconstructed the broken part and cleaned up the rest of the console. I also converted the RF output to an A/V output, but somehow forgot to take many pictures of that part although there is plenty of infomation on the internet on how to do that.
I'm not very good at writing descriptions so I always try and show a load of pictures. Basically I used an old soldering iron to melt the area slightly and then melt plastic welding rods onto the area to build it up until the plastic takes roughly the right shape but bigger than it needs. Then I used a knife and sand paper to shape the area until it looked like the opposite side. The final part was to use a modellers plastic weld solvent, dip my finger in it and dab the area to give it a speckled surface.