I've tried it both ways, but I'm not sure how much difference it made, since mostly the mirrors were folded out when I was testing inside the car but folded in when I got out. I'm now able to connect either way, but the signal is weak. The initial problem was that my network wasn't showing up in the list; I suspect that Tesla is filtering the list by signal strength so that only very strong networks appear. When you manually enter a network that's not in the list, though, you can connect to it. As I said, it took several tries, but I did finally get it to connect. (Some of those tries may have involved typos that prevented connection, but not all of them, so the weak signal probably caused me problems, too.)