I'm a bit of an old fuddie duddie, but I think there is only one thing you should replace a nice Airguide speedo with.
It's your boat to do with as you wish, of course. But if you are ever thinking about selling it, I'd say that does not help the value. A nice mount for a remote is a good thing, but the speedos are useful instruments.
JVC stereos have wireless remotes that attach to the keychain. We use that and it works great. You can also put it on a lanyard near the back seat to change tracks from the swim platform (no drilling holes in the transom necessary). It has worked for us. Food for thought.
Previous: 1993 Prostar 205
Red 1998 Ski Nautique, PCM GT40, 310 hp, , Acme 4 blade, Perfect Pass SG/Zbox.
Be kind. Have fun.