Fusion HU kaput?

Took the boat out for it's first outing this season. and the HU (Fusion MS-RA205) will power up and read "Fusion" logo on screen and do nothing else.
I actually testing the system out in my driveway before heading out and it worked fine. but once on the water this is all it would do.
I tried: removing power (via battery switch), rebooting from HU (by holding power button for a few second... it would shut down and then come right back up and do the same thing), i unplugged checked and plugged back in, everything on the back of the unit. and all of the above several times.
I have a remote AUX switch wired to it and also turned that off and on several times w/plenty of "reset" time in between.

Is it toast?

Call Rinker's, maybe it's still covered. David and I's headunits were replaced earlier this year.

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That's what i'm hoping. Just waiting for them to open...
I read a similar thread while on the lake (in silence) and that unit too needed replacing.
We've had the boat 3 years. so not sure if it's covered. we'll see. They're not too expensive to replace tho if i have to.

Crap! i always forget that they're closed on Monday's.

Yeah I am not too impressed with the Fusion head units. If it is not covered and you do have to replace it I would looking into the one made by wetsounds. I wish I had it as it would also allow to me to do away with my WS420 since it can do everything that the 420 does and more. I am a little concerned about fitment however. May need some custom work.