Thanks for the help! That website is very informative. Looks like the KDC-X692 is now X693. I think I would do at least the MP442U but the eXcelon X493 and X693 are all within $25 of each other and have the blue remote wire, so I'm thinking the eXcelon version is probably worth the little extra $?

I dont know that I'll do an amp right away with everything else I have to do but may down the road. I'm not a huge stereo person but I do like it to sound good. I agree with doing it once the first time, but will probably have to wait until some other priorities are addressed. It has a sub box already in the boat and I may put some speakers on the tower (after I get a tower) so may be the time to enhance the system then. I will update on the progress for sure!

Thanks for the help!