sandm,

I have a Kenwood eXcelon KDC-x692 that I bought last year for $125 on Ebay. It has all of those same features - 3 4V preouts, defeatable internal amp, aux in, USB, Sirius/XM ready, etc. Plus lots of more advanced features I don't even know how to use. I think you can get the same performance WITH a built in CD player for $150 or less at sonicelectronix.com with a different Kenwood HU. The one you're looking at looks like it has a bigger chassis too so you may have to enlarge the hole?

tazz,

These days, there really is no need for head unit anymore if you don't listen to the radio or CD. I think it's Newty who doesn't even have a head unit in his boat - he has an EQ with an aux in so that serves as his HU.