The pop is coming from the speaker hole, not the ear piece, I reset my phone, restored it, did the headphone thing. I wasn't running the ipod before, it happens even when i shut off my phone and restart it.
I actually found out that it happens when I recieve calls and when I dial with the keypad, but when I use the contacts list to dial and then lock my phone after hanging up. The lock sound comes back, It seems to only happen after recieve calls or use the keypad.