How do I program handheld camera-view look

I have a scene in my game where the player is in a moving vehicle, and I would like to add a handheld mild shaky camera-view loop to it. I have an invisible object that is tied to center screen and have the border limiting option turned off, so I can get a shake, but I'm just not program savvy enough to set every x,y coordinates of a camera's movement pattern. Any tips? Maybe set the object to a sine?

That seems to do the trick on a basic level, add a vertical sine to the ScrollTo object, with a small magnitude and a few seconds to the period. It gives the look of being on a boat or moving vehicle. I might add another sine moving horizontal, or a shallow zoom periodically.