Legacy Profile Music - Enable auto-play as option

I deliberately chose not to enable autoplay since some people would find it annoying - especially those on slower connections or who listen to their own music while browsing.

We'll take it into consideration still, though

Yep, option would make it ideal. Site admin chooses yes or no. If they choose yes then even the member can override this as an option in their usercp. (enable autoplay in profiles - yes/no)