Sea Ray 175 Sport, boat audio upgrade - Polk speakers and Clarion amp install

Just sharing the update I did to my 2010 Sea Ray 175 Sport bowrider. When I bought it, it came with the Clarion M275 head unit and just 2 speakers in the rear. I wanted audio in the bow, so installed 2 new speakers there and upgraded the rears so that they were the same. Like most basic head units, it was fine at low volume, but struggled when you cranked it up so that you could hear it over the engine. So I installed a small Clarion XC2410 amp which has been a great upgrade. Hope this is useful to other boat owners - the Sea Ray 175 is very similar to the Bayliner 175 and the larger 185 versions of the boat.