Yes the volume and track buttons do work.
I have the stereo apart for the 10th time. Just triple checking all soldering points. everything looks good and clean.
the dvd drive works when i supply power to the motor.
i can get the face open when my screw driver.
and i did download the file you send already. I can get into the menu but when i select the one for hard buttons, its just blank. no writing at all.
I didnt buy it from ebay, I got it from a pick and pull. $150 and I got the avic z110bt and all cables, Alpine flip down10'' monitor, 3 Jl audio amps and 2 alpine typr r subs. The car was just bought from auction and I was the first one there.
I'm not into it for alot of money it's just driving me crazy why half the unit works. even the touch screen works flawless!!