I have a Sony car stereo model XAV-72BT and I don't know my input security code

You have to contact the Seller or Sony. details in the link

Welcome to the Sony Community!

We are sorry to hear about the issue that you are having with the XAV-60 car stereo. The code that the car stereo AV center is looking for is a 4-digit security code that is programmed into your system during the installation process. This code is generally needed when one of the following issues occurs on the car stereo:

• the AV center was reset.
• the screen locks up on the unit.

If you purchased the vehicle from an individual, contact the seller of the car to see if they can give you the code. If you had your AV center professionally installed, we recommend that you contact the installer to see if they are able to provide you with the code.

If the seller of the vehicle or the installer is not able to assist you, or if you installed the system yourself, please contact the Customer Experience Center using this link:

https://us.esupport.sony.com/support/s/support-contact?language=en_US&category=car

https://us.community.sony.com/s/question/0D54O00006cxxEBSAY/what-do-i-do-when-i-forget-my-security-unlock-code?language=en_US

..

https://www.sony.com/electronics/support/res/manuals/4263/42632321M.pdf

Page 56

This requires the original 4 digit security code.

You talk about password code?, or no image protection only have sound?

How can How unlock my xav-622

Try entering code "5415" with your remote to unlock this radio.
Or you can reset your unit by reset button. download XAV-62BT manual from here and refer to the Page 14 for reset instructions and Page 10 for reset button location on unit. http://www.docs.sony.com/release/XAV60_EN_FR_ES.pdf

The code that the car stereo AV center is looking for is a 4-digit security code that is programmed into your system during the installation process. This code is generally needed when one of the following issues occurs on the car stereo:

• the AV center was reset.
• the screen locks up on the unit.

If you purchased the vehicle from an individual, contact the seller of the car to see if they can give you the code. If you had your AV center professionally installed, we recommend that you contact the installer to see if they are able to provide you with the code.
If the seller of the vehicle or the installer is not able to assist you, or if you installed the system yourself, please contact the Customer Experience Center at (239) 768-7547 to speak with a customer service representative.

5415 - from the remote...try this I think I saw it in some of the previous posts.

my stereo video send a video message for your safety blocked and I can not see the dvd

How to unlock the code for a Sony xav-60 car stereo