My amp that powers the 4 speakers is a Rockford Fosgate Punch 360.2 and I have it going at 2 ohms. Perko switch and a distribution block for adding my 2nd amp when I make my sub box. (ignore the red/yellow crimped wire. It's what used to power a 2nd ballast pump that the previous owner removed.)
It's worth noting that I was able to fix the horrendous feedback squeal by running a ground from my deck to the battery and also running a case ground from the deck to the chassis of the amp.
https://lh5.googleusercontent.com/-_...UNSET%255D.jpg
MB Quart Coaxials with LED Strip lighting surrounding the grill. And white LED strip above the teak steps. Yes, I was lazy and the wire you see going down from the speaker is powering the strip light. for my LED lighting there, I tapped into the court lights that are under the cupholder. Those lights were so rusted they were toast anyway.
https://lh5.googleusercontent.com/-5...UNSET%255D.jpg
Also put blue LED's in the cupholders...
https://lh4.googleusercontent.com/-0...UNSET%255D.jpg
A full shot of the gunnel lighting and the light around the speaker grill.
https://lh5.googleusercontent.com/-_...UNSET%255D.jpg