I’m trying to replace the C-map card reader in my Raymarine RL70C pathfinder series display, and I’m having difficulty disconnecting the ribbon cable from the back of installed card reader. The clips holding the cable to the reader just don’t want to let go, and now I’m thinking that there may be a technique or tool that I’m unaware of. Has anyone had this issue and figured out a solution. My curiosity is up and my need to replace the reader is driving me (crazy). Thanks!