Toyota Repair: bad reception

Question
Hello, I have a 2005 toyota sienna le with a toyota 16840 jbl radio that has bad reception. I do not see an antenna or antenna hole on my sienna. Is it possible to add a giant antenna or something to my system so I can get non-fuzzy radio? Thanks!

Answer
The antenna is a thin filament in either the windshield or a side window, bad reception could be the radio itself or the antenna, you can try to add some sort of external antenna but I would not know how to go about this, perhaps visiting a radio/alarm shop will result in some better answers, best of luck.