nickj03b posted a topic in Centurion Boat Accessories, Electronics and ModificationsHello everyone I am new to this site as I just purchased a 2008 Avalanche C4 this past weekend. Love the boat, not so much the stereo. Done some research and I think I know what I want, but need a few questions answered before I proceed. -My boat has the evolution tower with no speakers on it. I understand options are limited, but I have decided on a pair of REV8's using the x-mount (I believe this is the correct mount). Question for this is will this mount work in the upper and lower positions, or just one. And what would you recommend as far as upper or lower mounted. Will tower be able to be folded down with speakers on? -I am going to replace the 4 in boat speakers, head unit, and also add a sub. I plan on using a 4 channel bridged to run the Rev8's, and a 5 channel to run the 4 in boat speakers and sub. Question is what head unit do I need as far as hooking up and managing all those RCA's. It appears I will need some splitters, but tips on best way to hook this system up would be very much appreciated. Thank you!