This could happen “relatively” easily because all car systems are different. It can be small, medium, big or large like a stadium, could come with 4 speakers or 12 speakers… All in all, we use default settings which work in most cases but sometimes not. If not: It can be too loud, distorted or low compared to other sources of the car (FM radio, CD).
If you experience volume problems with Gateway sources (USB, iPod, AUX), then you need to select the Gateway menu, then go to Settings and select Volumes menu option. If you enter that menu, you can browse between different volume options like:
The volume output will be changed as soon as you set the new volume level (no restart is needed).
If you experience, that some of the car speakers are not working:
- BMW and other cars: If you have a BMW, and you experience that some of the car speakers are not working. The problem can happen intermittently, and later it might be a permanent problem. If you hear that only one side of the speakers have no sound, then this can be also a problem of the Gateway device, or the car. But if you hear that only one speaker is not working, or that only the rear or front speakers are falling out, then it can't be related to the Gateway device, it is definitely a car side problem. This can also happen by other car manufacturers, but by BMW it is a little more likely based on the feedbacks. The reason is that the car's amplifier is dying slowly. There are repair kits for this case, for example you can see some here.