Samsung XM2go - Manual (Page 68)

Settings 68
Settings
FM Level
When listening to your Helix using the FM modulator, you can adjust its volume level to
match other audio sources (your CD player, other FM stations, or MP3 player).
1. Select XM ➝ Settings ➝ FM Modulator ➝ FM Level.
2. Press the left arrow button to decrease the volume level or the right arrow button to
increase the volume level.
3. Press the XM button to confirm your selection.