04 ES330 - CD changer and iSimple adapter not recognized
I'm helping a friend resolve an issue he's seeing with his ES330. He previously had an iSimple adapter installed for iPod and Aux input via the satellite radio port. He started getting static on the iPod audio, and decided that he needed to replace the iPod cable to the PXAMG adapater. After having that work done, his CD changer was no longer recognized (press the CD button to access the Changer, and nothing), and his iPod adapter wasn't recognized either.
Another friend of his found that the flex connection between the power board of the CD changer and the CD shuttle/drive had stressed and cracked through 3 lines, so he bought another changer off of eBay. At this point, I stepped in to try and figure out what was going on - but still no luck.
The PXAMG iPod adapter is not recognized when pressing the SAT button on the radio, and the "new" CD changer is not recognized either. It's not powering up, either (the eject button is not backlit when the ignition is On).
He has the navigation headunit.
My first question is, does anyone have the audio-system circuit / wiring diagram for this vehicle? The only ones I've been able to find do not cover a system-wide connection (radio - amplifier - CD changer - speakers). I want to be able to diagnose the lines from the radio to the CD changer.
I'm wondering if some connector between the radio and the CD changer in the center console was unplugged during his other friend's repair attempt. I've checked all the audio system fuses outlined in the owner's manual and they all checked out fine.
Anyone know if a CD changer from another model is also compatbile with this stereo (even if it won't fit in the center console)? I'd just like to check if the CD changer port of the radio still works AT ALL. The CD changer's connector (at the changer) looks familar - like the CD changer port connector on the radio of similar-vintage Toyota's, I'm wondering if the CD changer protocol is the same where an iSimple PXDX plugged in directly at the CD changer end of the cable (with a PXHTY1 or PXHTY3 cable) would be recognized correctly by this radio.
Thanks for any help!
Last edited by khnitz; 05-05-12 at 03:36 PM.