Hi everyone. I've got a 65 plate fiat 500, it won't let me connect my Samsung s6 to it via USB to play music. It connects my iPod and my husband'so iphone 6. Any suggestions?

Blue&Me website only lists the SM-G920l Galaxy S6 as being compatible with the latest Blue&Me version. Have you got the latest version installed, if not try here:

http://www.blueandme.net/blueandme/index.aspx/index.aspx?brand=fga&lang=en#/support/download/

Then sync/pair your phone with Blue&Me.