You see these adapters all over eBay and other web sites and wondered if they can be purchased at electronic stores such as Best Buys, Circuit City, Radio Shack, etc. I really hate to wait for something this cheap to be shipped.
I got mine at Wal-Mart long time ago, don't know if they still have them.
had to just drill hole in wall and put cable through there, got damaged from window sill.