Octy front door panels / cards

Hello fellow Skodites

I am sure that this has been covered before but I can't find the info!

I am about to do a infinity reference 6500cs install but I have a stumbling block- how do I get the door panels off?!

I removed all the screws and had a good go at trying to relase the bottom edge but to no avail.

I don't want to break any clips or fastenings so is there an approved method of getting the panel off completly so I can get my hacksaw out and start cutting metal?

Thanks all.

Matty Boy