Two new noises have recently emerged which I would like to get some ideas about. Car has 63k mile. Two days ago a noise started from the automatic transmission that, from the outside, sounds like when a warped brake rotor lightly rubs on a brake pad. This rhythmic clinking sound is really faint and can only be noticed when stationary and put into drive (before the transmission disengages) or reverse. I wasn't able to pick it up through my phone so unfortunately I don't have a video for that.

Second noise started from the engine just yesterday. Could it be from the injectors or drive belts? Sound can be heard in the video linked below.