no need to open the hood. its not a consistent tick either. You can hear it with the windows down sitting in the car. That other tick is just the injectors or coils. sounds like a ball bearing dropping into a pan. theres a lot of thread and videos on the noise but no one has been able to fix it or figure out what it is. https://www.youtube.com/watch?v=Hga9tZMtN0g
not my car but this is the noise.