Hello, does anyone know where i can tap in to get 12v constant power near the head unit? I searched in all forum but cant find any answer to this. I have a android navigation box that has a memory cable which i have to connect to constant 12v. Thanks in advance😀

 

It really depends on the model year of the car. There should be a red wire, little bigger than the others that's 12v constant. You need to probe for it with a multimeter with the car off.

 

Is this wire at the back of the head unit?