Hi,
I bought Dasaita head unit but some connectors from the original radio are unused (1, 2, 3, 5). Right now I connected again OEM radio because I don't know if I'm missing something important, that why I hope you will help me.
I think 2 is USB, 5 is GPS and 6 is radio antenna. In number 4 I don't have anything but I'm just curious.