Stereo & Electronics - How involved will this be.......

I was thinking of upgrading the component speakers with a set of
Pioneer Premier TS-C720PRS. Does anyone know anything about them??? How involved would the installation be for a newbie???What should I consider besides upgrading the HU and amp???

Those are an excellent decision for components! They're sold out just about everywhere online because of how great they are. You'd need at least an amp to go along with them, something that will do 75x2 or 100x2 at 4 ohms would work perfect.