I know this is going to sound funny, but try out the Wal-Mart radio section (in their auto parts dept.). Their radio display section has a computer touch pad with all kinds of info. The main section of interest on this pad is "installation kits". You can select the make, model and year of vehicle here. Once you have entered the info, it will tell you what size speakers and radios that will fit your car. It worked for me, maybe it will work for you. Hope this helps!