Hey guys
I am having some issues syncing my iPhone 3gs on my computer. I own a 21.5 iMac with OS X and my itunes is up to date. Whenever I plug in my iPhone to my iMac it shows that it's charging, but nothing pops up on itunes. Does anybody know why? I tried the apple support page, but nothing helped. Normally I could care less about putting music on it, but I just bought a $60 FM transmitter so I can listen to it in the car, so id like to figure out how to make this work.

Any help would be greatly appreciated. Thanks in advance!