You guys are ****ing retarded. Yes taking them out would solve his problem. But its obvious he wants to keep them. There is no simple answer for whether or not you need rear fill. So saying you dont need them just makes you look stupid.
Its all personal choice. I drive a midsized sedan and it sounds weird without rear fill since the cabin is quite large. I also prefer to be surrounded by music with it faded just slighly forward.
To answer the OPs question. They do make baffles that you can mount behind your speakers. Ive never heard them personally so I cant comment on that. They arent expensive, buy some and let us know what you think. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif