I'll try and find sugru, cheers. I used evostick sticks like **** on it before and it stuck extremely well. Unfortunately it fell apart when I dropped my keys whilst in work, so it's not a very durable adhesive, I guess :lol:
I think the master key lost the sync with the car, for some odd reason. The secondary key was completely dead, although the new battery has completely cured it.
Only issue is the boot unlock button on secondary key doesn't do anything. It must have been coded out at some point in its life. The boot unlock button works fine on the master key, so glueing that back together is the priority now so I can begin using that key.