Backup camera not working

Back camera hasn’t worked the whole time I’ve had my truck. I bought a cheap camera off eBay hoping that would be the fix, but turns out after wiggling some wires behind the radio and at the camera connector the camera isn’t the problem. Does anyone know which wire from the back of the radio goes to the back up camera?

 

Should be "A" in this picture, stole it from the install instructions for the Anytime Backup Camera.

 

thank you I’ll check it out

 

For a 2015, the wire colors are red, white, black, and a taped black shield.
This video may help.
https://youtu.be/_aULuiHvdjc?si=ensyV7EJixMaIoYH
Red is Video +
Black is power to the camera + 6v
White is ground neg -
Black shield is Video -

I hope this helps.

 

thank you, I’ll see what I can figure out!