Some of the new 4th Gen Nanos and Classics have additional software measures for DRM that may be incompatible with the WiseLink features.
I believe that you could use RCA to 3.5mm headphone jacks as an alternative, however, if you can't get music through the WiseLink port, it is likely that the additional technology added on by Apple may be the cause.
When I plug the IPOD Classic into the USB port it regognizes it and I am able to view the pictures but not listen to music or watch my videos, is it posible to do so without buying more cables? I have the samsung LN52A650. I have searched the other forums maybe i just missed it but still can't get it to work.