I put speakers in my GS, but opposite of what LAAllison stated. I have the 5.25' one's in the front, and put my 6x9" one's in the rear behind the driver's seat/passenger seat, just before the bench seat. It is a tight fit,but if you take your time, and cut just right, the speaker will fit just right. I did this to have more mid-bass getting out of the boat that way, in my opioion.