So I have a Pathfinder 1900 that currently has a Lowrance HDS7 Gen 1 on it flush mounted. When fishing for stripers on Murray it is pretty small when you go split screen between chart and sonar. I don't really have much room on the dash to mount a bigger unit, but was thinking about two options. Is there a newer unit that would fit in the same hole that would have a bigger screen that might be touchscreen so minimizing the extra space for buttons but getting a bigger screen, or do any of yall run two units that would have one for sonar and one for charts? The boat used to have a unit mounted on top of the console before they installed the flush mounted HDS7 so there is an area there to add a unit. Any advice would be helpful