It is, a direct input like CD or Aux is of better quality than the radio, but only marginally. When my phone is hooked up through the Aux port, the volume on the phone is maxed out. Using the same equipment on my 2000 BMW 540i, I can barely get the volume to 25% before it gets too loud.Is it the same for all inputs? If its streaming from your phone, you may just need to increase the volume setting on your phone, but if FM is also quiet, then you have a problem. My FM input is stupid loud.
Not expecting to be wowed by the sound quality, but would like to hear what I'm trying to listen to!