aftermarket stereo in Rio

hi, i just bought a CD player for my Rio, and I noticed that the cassette player is wired in a very strange way. and the diagram on the top of the cassette player is of absolutely no hlep. anyone know where i can get a decent diagram?

I had to go to the wiring diagram in the audio book that is supplied with your rio

I´m looking for a radio ISO connector for RIO, I `m looking for a supplier who can sale me some of them, but I haven’t find the right one, I have not the idea the original manufacturer , part number neither, I tried with Yazaki send the digital photo but told me they don’t made it.
The connector is few inches away on the end of the wires that come out of the deck and this connector (black color) is female and is connecting with male connector who is in the harness of the car.
Where can I find it?
Thanks for your help

did you still need a radio diagram?