I want to use my Nexus 7 as a GPS device and my Note4 as a phone.

I have tried to pair the Note 4 as the primary phone and the Nexus 7 as a GPS and the phone worked fine but nothing from the Nexus 7.

I tried pairing the Note 4 as primary phone and the Nexus 7 as 2nd mobile phone device. Same thing. It did not work.

I paired the Nexus 7 as primary phone and the Note 4 and 2nd mobile. I finally got audio from the Nexus 7 but nothing from the Note 4.

I paired the Note 4 with the 20s as primary phone then paired the Nexus 7 with the Note 4. It didn't work either.

Any ideas??