The JBL GTO638 makes the perfect factory replacement, considering it is a 6 1/2″ 3 way speaker it still slots into a 6″ space perfectly. It has become a bit of a trend with newer cars that changing the factory stereo can become a right pain, if this is the case replacing the factory speakers with GTO series can make a world of a difference.
JBL also makes the GTO series in a 3 1/2″ , 4″ , 5″ , 5×7″ , 6×4″ and 6×9″ making them the ideal for any make of car. Also JBL have been making speakers for over 60 years and with that amount of experience how can you go wrong!