I bought some Swann security cameras. I want to mount them to metal barn siding. I was just going to fasten them to the metal with a 2x4 behind it. How have people ran the wires through metal though? I don't want to have to make any bigger hole than I have to. I am probably going to put 3 of them at the corn of a building aiming in three different directions. Any ideas would be appreciated.
