I'm going to install a PoE switch in my garage inside one of those in-wall structured media enclosures. I have three cameras that will be run to that switch. What is the best way to penetrate the siding so the cables can enter the garage below where the enclosure is and then feed into it. I'm looking for some sort of "siding grommet" or something. Anyone done this and used something that worked out? Please share... thanks!