You'll have to be careful - I pretty much broke mine doing it.
Flick the key out but don't let it click into place. You'll see a hole near the bit where it swivels, and there's a thin pin that holds the key to the fob. You'll need to carefully slot it out. It's a fragile piece - I put in a bit too much force and the pin split. Once it's out, the key can be separated from the fob. Putting it back in is even more difficult... I ended up breaking mine :rolleyes: I've replaced the pin with something similar + super glue :???:
