I got a android aftermarket oem style hu for my 2012 civic si and plugged everything and it turns on but no sound. I am very new to this type of stuff and I also don’t no much about wiring. Any ideas?
So it looks like on this diagram that 16 & 17 are your main audio outputs. Just from a construction standpoint-- the way that they're just hangin' out of the molex like that can spell trouble. If you're up to it-- I'd attach a male-to-male RCA cable to these two connectors (for extension), and then test that with a multimeter to see if it's giving any signal at all. If there's no signal, then the board might have some sort of loose portion between the wire and connection ( maybe a push into the slot will help ), or an actual short/broken piece.