2005 Forenza radio has cd player & tape deck. I had issues with battery going flat a few times & I replaced the battery about a month ago and the radio just malfunctioned a few days ago. Cd player doesn't work, sounds like it's loading but it won't take a cd. I'd like to have radio working. I have no idea what code is as I bought car used. How are codes entered into radio?
As for how to enter codes, its radio dependent and you will need to refer to the user manual, put the wrong code in either 3 or 5 times then its going to lock out and depending on model may never work again.