DYI instructions for Replacing Parking Brake Handle on 1995 Mercedes S600 Sedan

I found the Mercedesmedic guide for replacing the parking brake handle on 2000 and up Mercedes but not for my 1995 S600?  The left dash side panel of my S600 does not seem to come off like in the newer models?

 

Can you provide DYI for replacing the broken plastic one with a new one for my 1995?