Does 06 civic vti headunit have stackers port at back?

[ausuki]

Hi, does 06 civic vti headunit have stackers port at back? I searched web looks like US model have stackers port at back of the head unit, just wonder Aus model has too or not? Also is anyone know what brand is the stock unit, is any possible to have a pioneer cd changer to connect with the it if there is the stackers port at back?
Cheers