I purchased the Sony CDX-M30 to replace another Sony radio on my boat. The installation and wiring followed the old unit and, in my case, was done in about 10 minutes! The scrolling information is visible from my viewing angle as the previous Sony wasn't. There are not too many bells and whistles, but for listening to a CD or music while out on the water, this unit fills the bill perfectly.

I would recomment this product.