I've been trying to hook my sony mp3 player (believe it or not it's a "Walkman" MP3 variety) to the car system. It partially plays one song and says "creating index" then it will stop and a message says "can't find player" it pops back to the radio. I try again, same thing over and over. How long does it take to create an index, I'm assuming it's making a list of the 2,000 songs on the mp3 player. I also tried putting my flash drive into the USB slot, same result "creating index", one song plays. End of story. What am I doing wrong? What exactly is the procedure for hooking one's MP3 player to the system? The manual is quite vague. Thank you! Oh it would help to tell you it's a 2012 Cruze Eco, I've had it about 2 weeks.