Well, I was getting sick of the stock, crappy system in my runabout so I installed a new system. Its now got a sony head unit, soundstream 720.4 amp, Polk 6501 component speakers and an 8" polk momo sub under the seat in a sealed enlosure. Granted its not going to win any stereo contests, but it sounds great. I may add an additional set of 6.5" speakers up front. Thought I might share the pictures. Its a 2007 Vectra 182 (same exact boat as a starcraft 1800). The amp is mounted up front under the seat. I have a Polk Subwoofer grill cover on the way to protect it. Now I have to get going on my Fly Hi pro X tower install before winter. Thanks for looking.