I would like to run three low-voltage cables from my entertainment center through an old plaster wall, down (1-3 feet) through the sill plate, and into the crawlspace.
The cables are Ethernet, coaxial-something (for a roof mounted UHF/VHF TV antenna which we haven't installed yet) and speaker wire.
Will this gang box will be too crowded? Is there an easy way to give me more space inside the gang box, or to deal with the thick coaxial cable?
I might want to run additional wires into this box later, such as phone cable for our DSL connection, or maybe an HDMI connection to another room (but this is a fantasy). Since I have existing wires in the box, will routing new cables through this box and through be a problem?
I have a raised crawlspace (4 feet high or more). I need to get the cables from behind the wall into the crawlspace. It looks like many people drill a hole through the sill plate and then route the cables through the hole. Is this recommended, or does it cause any structural issues? I would be drilling the hole from the crawlspace up into the wall. From the room above, I would then need to cut a hole through the plaster. Is there a way to make these two holes line up?
I'm looking at the following products to make my life easier.