The rear speakers in our Santa Fe won't work when using the usb and aux cord for my iPhone. It only happens with my iPhone and anyone who plugs in with an iPhone. However all the speakers work with my friends Samsung. Is this a problem with Apple or the car itself? Any suggestions?
Read more: https://iphoneus.org/faq/rear-speakers-in-hyundia-santa-fe-won-t-work.html