2015 GT 5.0 and USB problem.
Have the premium sound package, 12 speakers etc. I have 120 songs on my USB. Using a MacBook Pro, deleted 30 Christmas songs. When I plug it back in the USB port between the seats, the Christmas songs are still on the play list and do play.
I checked the manual for any reference to a hard drive in the systems that may have recorded all of the music from the thumb drive plugged into the USB but can't find any such reference. What am I missing to have these Christmas songs not show and play?
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