this is an installation for a Subaru Forester 2002 that has electric door lock but you have to open with a phisical key because you don't have a remote unlock this is the video that can help.

this is the kind of wiring I used as reference even though the guy did it in a toyota yaris I still had to look for my own specific wire for my car model.    • FICBOX Keyless Entry Car Door Lock Sy...  

this is the product I used: https://amzn.to/3xn4vsf