Basic. They are not component speakers. But do it your self. They are just speakers temove old ones put these in 4 screws each and two wires. Youtube how to do it for your car. Very simple project
I would encourage you to visit a Best Buy store to speak with a tech in the car installation bay for additional details. A tech should be able to determine whether or not this receiver is compatible with your vehicle.
It does not matter as long as hole is correct size. Usually you can use the existing top hole and drill or use a couple self tapper's to finish install. was very easy on my Acura TL