Hands down best deck I've ever owned. I had the previous version before that didn't do A2DP and then got this when I got a different vehicle.
I got mine new for $95, now it looks like they have a refurbished unit for $89 and a new one for $139.
Even as a refurbished it's a much higher quality deck than the Scosche posted and is fully loaded with features for a better price.
Bluetooth w/ A2DP, USB and AUX in front, iPod control, IR remote, cd player if you still use that. They also make a version of this for the same price without the CD portion for the same price if you wanted a pure solid state unit. It has Front and Rear/sub RCAs in case you needed them at some point. 50w x 4 channels. Sound quality is awesome, interface is very intuitive, and it even comes with the bluetooth microphone for making phone calls through the deck. This works well even in noisy conditions such as my loud truck cab, so it should work well for the boat as well.
That sony listed is pretty slick if the transom remote is rf or wired. Too bad you don't get signal inside the unit for things like Pandora and iHeartRadio. You just added a USB extension so you can plug it in from outside the deck right?