Yes I have used a stethoscope and the clicks are being made by the injectors

My injectors have been super noisy as of late. You can listen to it here https://youtu.be/lpJwtvX_-K4 hopefully some one can help me out.

Because the compressor starts clicking is it worth replacing it or does it just start clicking again almost instantly? Also what are some good ways to reduce it clicking? cause it makes the car sound unhealthy and I'm a bit of a snood when it comes to these sort of things.