Usb adapter
 

I am trying to install a android headunit (off brand) with a rear usb port that is not usb. It has 4 pins and tried a motgernoard header but it is too large. Can anyone tell what type of adapter is needed? https://www.dropbox.com/s/vvlcollezm...15945.jpg?dl=0

I have installed Smarty Trend android head unit in my car. But it was coming with a wiring. I think you need to contact the seller and ask for help.