So I have new to me 2017 Sea Ray 250 SLX. It has the Dynamic Display which is made by Medallion IS and uses the Viper ii control unit. It did not come with a map card. There were two SD cards in the unit but both just had the troubleshooting guide on them. When you go to the Nav screen on the...
The factory website has the manual for the boat 250SLX and under the section for Dynamic Display says refer to that manual. That manual is NOT available for download from what I have seen on the Sea Ray website.
I also have no idea who actually makes the display...I'm sure it is not Sea Ray...