The gps works.Does your gps work? Your picture is the computer display. This will work with just about everything in the rear fried. Is EVERYTHING working except the sound?
No activity from the CD changer when the 'MODE' button is pressed a few times.Put a CD in the changer, turn on stereo, push "mode" button to see if the cd player engages (listen for it in the glovebox). No display needed, as the "mode" button does it all.
I too am having this problem with my 2008 SC RR with logic 7 and additional aftermarket subwoofers and amp. From my research I’ve concluded that the MOST fiber optic loop that feeds information to each component in the entertainment system has been damaged, unplugged, or otherwise interfered with in some way. Considering the fiber makes a loop from head unit around, if your cd changer is not working, I’d say the problem exist either there at it orr before it as the light travels there then to your rear where if like mine the REsystem is present, Bluetooth module, nav, factory amp andso on. This is called your MOST system (for whatever reason). If familiar with fiber optics you can simply bypass the cd changer in this case by splicing and creating a loop to bypass the changer and keep the light moving forward in the loop. You may not have a changer working but should have radio and everything else... Goodlu kLeft rear corner of the truck behind the removable panel, all of the audio, nav and bluetooth modules are back there mounted in a rack.