I use an 8200c with navionics charts.
I'm very happy with it. Its easy to use, bright and clear. As far as I know as long as you use nmea 2000 stuff then most data can be shared.
They have just released a software update to allow the use of platinum charts along with general upgrades to the the os.
If you want specific techie questions answered speak to jkmax
, very helpful guy.
I had a look at a demo unit on a susuki last year, looked very good and easy to setup. Depending on the age of you engine you may be able to plug nmea 2000 directly into it