Key fob struggle

[Chris340gti]

Hi all , can anyone help ..

I have this key fob as a second key .. it needs a new battery but can’t for the life of me find how to open it up ??

Here’s a pic , some of you may have a similar key and be able to enlighten me !!

[cuprabob]

I thought you solved it?
https://www.pistonheads.com/gassing/topic.asp?h=0&...