Hello all! New 2008 IS250 owner here. My car came with a factory installed XM radio. I've noticed that there is a volume difference when switching between XM radio and other audio sources. Is there a separate volume control somewhere for the XM radio output? Please advise. Thanks!

 

Does that happen to you on AM Radio too? One thing that helped a little bit is to adjust the sound settings (bass, treble, mid) they are separate for each input.