How can I determine if the audio/CD system in my car is anti-thefted? If it is, it is said that if I disconnect the battery I will need input some "ID". But the seller didn't mention anything about it when he sold it to me.
I didn't find any marker or label indicating "anti-theft" in my audio/CD panel. It is a 2000 camry 4 cyl. Thank you!

It should say it right on the faceplate of the CD/stereo system. In the 2000 Camry 4 cyl models, I believe it was part of the alarm/security option package. My 2000 Camry LE 4 cyl model does not have the anti-theft stereo option package installed. Yet, it does have the keyless entry package.

Thank you very much! So I should be able to disconnect the battery if necessary.