CoolStream Duo Bluetooth Receiver 

When using bluetooth audio, make sure that the audio on your main audio device is almost all the way up.

you get everything right what you need to do is to turn on the volume of your phone itself.

The volume on your phone was probably low . If you had it all the way up on your phone it would of sounded as loud as the radio did

Mercede radio saves audio setting configs per device/input so you have to program it after the 1st use and it will keep the setting. Ie. Bluetooth and radio may have different bass and treble settings etc. I have had to adjust a few times.

Does steering wheel control work with Spotify?

try turning up the volume on your phone. there is no defect.

Wat model is ur car ? I have 06 R350 just bought the coolstream Bluetooth and it doesn't work

Does the steering wheel controls work? (play pause next...) I believe that worked with an ipod connected, if so this will endup in my e90 :)

Do you always have to pair it with the device or does it automatically connect to your phone when you turn on your car? I have the same thing in my car but I got a Bluetooth that connects to the aux cord but I always have to reach over to turn it on. I’m looking to pretty much switch to this device.

turn up your phone volume to max then the sound will comes out louder.

Can I get the link for the audio device on Amazon?

How did you get the time to show on the bottom right hand side of your unit?? Mine doesn't show there and I don't know how to make it happen!!

Can you make calls & receive

The volume on your phone was low.

Same car, same issue. Not my phone volume.

Hey genius...you need to turn up the volume on your phone first. And BTW, "AUX" stands for auxiliary!!! . As in auxiliary port. PLEASE DO NOT REPRODUCE. Abstinence is your friend.

When connecting appears "error "on the Mercedes screen. Why? (MB GLX164, command 2.0)

Mine device stay on when the car ia off it run my battery

Turn volume on phone

turn the volume on your phone bighead1

didn't work for my mercedes