Navigation system that comes with 2012 Subaru wrx is great but it has one extremely annoying feature; navigation minimizes ringer volume on your phone when it is getting connected to it via bluetooth. It happens at least with all iphones.
Subaru tech said navigation does not change anything itself so it must be a problem with phone.
After playing around with “buttons” I found solution:
On Navigation unit do this:
- Go to Audio/Info/Bluetooth/Registered Devices
- Select your phone and press Detail
- Switch Connection method from “From Headunit” to “From Device”
This will fix ringer volume problem with iphone and subaru navigation unit.