I recently purchased my first sea ray and of course the first things to do were led lights throughout and a stereo upgrade. The 260 only had 2 6.5 and 2 tweeters on deck. I done away with panasonics and added 4 kicker led 6.5 and 2 8" led kicker with 2 kicker tweeters and a kicker sub in the factory recess. The planet audio 1800 makes it sound awesome except the sub mounted in the factory spot. Had to cut the opening out so just making a custom box is kinda out now unless I want a 10" hole. it rattles the seat insert to the point it makes the music sound awful,sit someone in it and it sounds fine. Anyone experienced this? If so,what was your fix?