Shape of Clarion stereo removal key?

Anyone know which removal key I need for the Clarion stereo fitted to a 98 20VT?

Just sent you an email

Dave G - many thanks!

Thanks to Dave G I have been able to use the special keys to free off the stereo cage.
Trouble is the last plug at the back of the stereo is fighting me off and won't let go!
Bit worried about not being able free it without breaking the plug or the wires???

There is very little free play on the stereo wires so a bit more head scratching....

A little plastic hook was the culprit - now freed!
The stereo removal keys are a tight fit, but did the job.