CD Changer problem

Stock 6-disk changer.
It was working fine until a few weeks ago. I accidentally hit the 'DISK' button like 3 time really fast, and it kinda froze it. Since then nothing.

I can cycle through the disks and I can hear it changing through the disks and it sounds like it's reading them. No audio and it wont let me cycle through tracks. It acts like it's not reading the disk...but doesnt display any error message or anything.

all other radio function works perfectly.

I checked the inline fuse near the changer and it looked ok. Also tried unplugging the power cable to try and 'reset' it.

any insight?
Thanks