I ended up ordering the Sony MEX-M100BT for $269. I did not opt for the automotive version because they were no longer available for $149 at Best Buy. Everyone had them for $199. For only $70 difference, I'll take the Marine version and have the epoxied board.
I like that the this Sony has the built in Amp with a true 40watt RMS, as I am not planning on adding an external amp(s). If I ever want to upgrade that, I could add a powered sub, but not planning that any time soon.
I also had ordered the West Marine WM7000 while it was on sale, but I will return that to the store.
Thanks for all your help.
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"Knot Easy" 2000 Horizon 240 Volvo 5.7GS /SX
tow: 2017 Honda PILOT EXL-AWD
prev. boats:
'87 Chaparral 198CXL 4.3 OMC Cobra
'69 Jetstar 16ft Ski Boat, 115hp Yamaha
'68 Aluminum Jon Boat, 3hp Sears
'64 Water Wings