I've noticed 2 slots on each side of the headunit what do i need to remove it from the dash?

I used a junior hacksaw blade cut in half.

I nipped up to Halfrods and they took it out for me.

The keys for taking it out are pretty small.

I've noticed 2 slots on each side of the headunit what do i need to remove it from the dash?

Kenwood radio keys from Halfords

*cough* http://briskoda.net/search/ *ahem*