Here's the first one i pulled up.
https://www.joyingauto.com/joying-la...4g-module.html
In the 'included' section it has both wiring methods, 'iso', and '20 pin'. Iso is a euro standard, we use the 20 pin method.
I don't see a link for a manual, so i can't confirm all the wire colors, but it should connect identical to the wiring on page 3 here:
https://www.google.com/url?sa=t&sour...imSjAeemdnkw-2
You should need 2 harnesses for the install:
http://www.ft86speedfactory.com/metr...B#.XVZBt-xOnOM
The 10 pin is for power and amp turn on, the 6 pin is for speaker connections.