Balance problem in my Tesla- no sound coming out of right channel

I connect my Iphone 5s by bluetooth to the car.

FM radio plays out both right and left channels.
Itunes plays out both right and left channels.

Only Music played through DJay2 only comes out left channel.

What gives?

djay 2 does have a Bluetooth problem. It happens when forcing dis- and reconnection to Bluetooth, which happens quite often when being connected to a car.
Rest assured, we are aware of this. Our developers are already on it!

Further to the problem…

No balance problem when connecting Iphone to other systems… So I know you’re going to say the problem is not with DJ2… must be the Tesla… I understand.

But the car plays everything else through both channels, just not DJ2. I dropped the connection and reconnected. No help.