Are you using iTunes? If yes, make sure that the output is set to the D150.
If that doesn't work, try turning off the D150 completely, unplug the power cable. Turn off your iPod all the way. Turn both back on.
If that doesn't work, check the D150's user manual. You shouldn't need a driver for an iPod.
Make sure the firmware is up to date on both.
If that doesn't work, try turning off the D150 completely, unplug the power cable. Turn off your iPod all the way. Turn both back on.
If that doesn't work, check the D150's user manual. You shouldn't need a driver for an iPod.
Make sure the firmware is up to date on both.