Using bluetooth and Auxilary seperately

[mekat]

i am trying to use bluetooth for my headset(for GPS), and play music through my auxilary in my car. Music works fine, however when the gps kicks in, it plays on the auxilary, or music.Is there a way to separate the two?

 

[americanaudiophile]

You can check the owners manual for the headunit or car but I would say it's unlikely.