So I installed the 700BT and hooked up the iPOD cable (RCA) in the process. Plugged into the USB cable as well. My sister says that the song titles and all that show up on screen but there's no sound. I made sure to tape the RCA cables together so that they don't fall out. I know the system is working as it plays the radio and CDs just fine. Any clues as to why it's doing this?

a lotta times you just gotta pull the ipod out and start over. just disconnect it and plug it back in. this has happened to me before in my 900. did you switch AV1 to "iPod"? that's another common mistake

From the Menu Screen, hit Settings, then AV Settings, then set AV Input 1 to Ipod

From the Menu Screen, hit Settings, then AV Settings, then set AV Input 1 to Ipod

DEFINITELY your problem.

Alright... I text'd my sis the instructions. Hopefully, this will solve the problem. Thanks, folks!

Update... indeed, your suggestions solved the problem. Gracias!!