Feed cables through the holes.
Cables through attic.
For single floor homes with a basement the basement may be the best path.
How to run tv cables in wall spaces from the attic or basement space.
Be sure to leave enough slack on both ends to make connections.
On a single story home or the the upper floor of a multiple story home this means accessing your attic to run wire.
My cable tv is distributed through the attic so it seemed like a good solution to run my home network through there as well.
Install coaxial cable cable tv or satellite tv cables concealed in wall spaces from non living spaces above or below.
Use a fish tape or a fish stick a rigid pole for pulling wires when you need to pass them through the wall plates to the floor above or below the one on which you re working.
New lighting cable computer networking and sound systems can all require wiring that may need to come through the ceiling.
Second bring the fish tape after that tape the start of the camera cable to the fish tape and pull on the fish tape through your attic.