Hi Joooe. I am in dire need of your assistance please. I have a Chinese brand HU, and I am struggling to get it to switch on. I too also had two plugs empty after installation, and it just won't switch on. I'll worry about wiring the sound to work at least after I know it comes on. I have the Connects2 kit exactly like you have, and I too have the 2.2 diesel with the Amplified sound system. Please assist.Well, the Civic diesel has indeed an amplifier. I had to connect the speaker wires directly to the ISO plug, otherwise I didn't get any sound.
Final result (obd2 info on screen) /forum/images/Civinfo_2016/smilies/tango_face_grin.png.
The amplifier plug: