Currently Being ModeratedMay 10, 2013 3:52 PM (in response to bluejacketsfan)
Make sure the plug is fully inserted into the headphones jack.
Are you using the short USB cable that came with the shuffle?
Is this a new shuffle that you have not used before with this Mac, or did this work fine before and does not now for some reason?
Currently Being ModeratedMay 10, 2013 6:24 PM (in response to bluejacketsfan)
I think the problem may be the USB cable. If it's a third-party (non-Apple) cable, it may be for the older 2nd gen shuffle. It may fit, but the connector used by the 2nd gen shuffle is different from the 4th (and 3rd) gen connector. This is the official Apple replacement part
(Comes with one short cable and one long cable.)
There are third-party replacements, but it needs to be clearly described as being for the 3rd and 4th gen shuffle, not 2nd gen. And with some sources, there may be quality issues.