I have honda fit 2011 1.3 Japanese import.There is a port which purpose i dont understand .Can please anybody tell me its function. As my car lack usb and aux input only option for playing music is CD which is quite outdated. My car come with stock Internavi premium club dashboard player. I was just wondering can this port have something to do with audio video of car. I already asked Honda USA but they told me to ask Honda Japan but i dont understand Japanese.

Its under cigarette lighter socket.

 

I have the same looking port in my 2012 Cr-z, but mine has the pictured cable with a usb at the end with a "premium club" dongle in it. After a bit of google searches the premiumclub thing seems to give you more options for the navigation part (if you've got a current subscription and are in Japan) I tried plugging in a usb with mp3s on it and nothing, and then a charger for my phone and also nothing. Hope this helps...