How to remove the radio from a T4?

[Rebuild]

Google search. YOU can do this too!!
how about this
Beta radio removal | VW T4 Forum - VW T5 Forum

Apparently you can also buy the removal tools on ebay

[Gold Coaster]

Google search. YOU can do this too!!
how about this
Beta radio removal | VW T4 Forum - VW T5 Forum
I tried googling and have looked at this thread but a hacksaw blade is too tall for the opening. I then tried using a jigsaw blade which fitted but still didn't release the latches.
Apparently you can also buy the removal tools on ebay
All the ones that I have seen on eBay are shaped like the one that I already have.

I've also seen on google how people have fashioned a key from an old credit card so I might give that a go with a straight end as Sunny suggested.