Just had my new stereo installed with speakers. I dont know if anyone else has had problems with the speaker sizing but I had 6 1/2 inch Hertz speakers put in and they had to use a speaker spacer because the window would not clear the speaker. For those interested had Alpine CDA 9886 installed with 4 Hertz speakers which sound great and a sirius sportster. Good looking install and much better sound than stock radio.