Originally Posted by mtnsportr
My iPhone and GS2 both worked well with my Subaru factory stereo. However, the GS4 only auto-connects voice and not audio, so I have to select it manually every time I start the car. After reading the posts here and on another forum, it sounds like the issue is on the phone side, not stereo (or BT headset).
We need updated firmware from Samsung.
I am having the exact same issue also. My Sony in my truck worked with S3 automatically turning on phone and media when i started the car. But with S4 it is only doing the phone.
Downloaded this to try it today see if it fixes my problem as well. *tried it at lunch no luck*