This is a stupid lock system on the radio. I locked mine when I typed in the wrong code when I disconnected the battery. The manual doesn’t help at all either. The way to fix it?………
Turn on the radio and leave it for an hour!
Luckily it works without the key in the ignition so you can turn it on, lock the car and return in an hour. After an hour, it will be ready to insert the code again. Doesn’t mention that part in the manual. Enter the code and all will be fine….. except if I remember right, the volume will be up a bit from normal, just a warning. Mine scared the S#!T out of me when it came on. :LOL: