i have the infinity system in the coupe... it sucks...i just changed it today to a better infinity component system..its was a pain in the but to install but way better... they say they give you infinity speakers and they do but the quality of the stock speakers very poor...the highs go down when a you play a song with a lot of base... you should just go aftermarket all the way 6 1/2 will fit perfect for both the front and rear...it all looks stock with much better sound...