I had the Roady XM and recently purchased the Garmin2730. I transferred my Roady account to my Garmin XM account. Now when I listen to XM I have to turn the volume to 21 when before while using the Roady I had the volume set at 16. I have adjusted the volume control in my 2730 to 100%. Is there another control I'm not aware of or is this something I'll have to live with. Really, it's no problem but more of a curiosity question. Thank You.