I felt the same as you for a while. I did alot of research and one of the guys at Elemental Designs said it best when he told me that If I really wanted my car to saound realistically great, don't go with any rear speakers or "rear fill". Sure rear speakers pull the sound back further from the front, but when you go to concert to see a band perform, the band is in front of you... There are no guys behind you playing guitar. Make it like a concert hall dude... Make it like a concert hall...