DC 266 Helm Trim Piece Removal

[davemonroe1]

Trying to replace an under-mount Garmin GPSMAP 8400 that has a bad display on 2021 DC 266. Cant figure out how to remove the helm trim piece to gain access for removal. Anyone have any ideas?

[BayLife12]

I have the DC265 and also had the display go bad on the Garmin. I was able to access the dash electronics from the back through the storage hold door that is in the walkway. It's not a comfortable access but you can reach everything. I had to remove six wing nuts and washers from the back. Careful when unscrewing them as it's easy for them to fall down behind the fiberglass when you are unscrewing them. Once you get the nuts loose, and unplug the electronics cord quick connects, you can just lift the trim plate and the whole Garmin unit off from the front. Garmin gave me a new unit as it was under warranty and it just slip back in place from the front. Then you have to go back in the storage hold and refasten the washers and wing nut, plug the electronics back in and you are set. Like I said, not the most comfortable access, but doable. Good luck!