I recently purchased a 2009 HST and i discovered several RCA (red, yellow, white) cords under the driver's seat that appear to connect to a small 4"x4" silver box. I cannot see what exactly the box says on it so I cannot tell if this is factory or aftermarket. Does anybody else have this on their Sport? If so, what does it go to? The vehicle is equipped with RSE if that makes a difference. Thanks.