Alright so after playing with the stock JBL system I am convinced that I need new door speakers as well as a sub..... Not fully convinced on the setup yet but I am going to order the Alpine Type R 6x9's for the front doors and see how they perform. I will be running them off the stock JBL amp for now.
Please share your review. I have a 2013 JBL system and bought some JBL GX302s a year ago and still haven't installed them.