I currently have a small hole in my brick wall that is bringing a cable for my satellite dish into my house.
I now want to install outdoor speakers in my backyard and I would like to feed the speaker wire through this hole, however it is too small.
I'd like to make the hole a bit larger without having to do any drilling to avoid damaging the existing cable. Is there a way to chip at the hole to make it larger that won't risk splitting the brick?