I got the iPod interface installed a couple days after easter, and a couple weeks ago when I started my car, it would not recognize that it is installed. It still charges my phone, but when I press the CD button on my radio which is what I do to get my music playing, it does nothing...at all. It fixed itself a couple hours later, but today the problem returned. I have been at it for over 3 hours trying to find the problem, but I can't. Does anyone know what the issue might be or how to get it resolved?

 

Have you tried pressing the radio button? Checked all the wires?

 

Intermittent problems like that are usually caused by a loose harness, but there's a chance you just got a bad PA15.