Review on Scosche HA13B Amplified System Wire Harness for 2006-2011 Honda 🔌 Civic - 4CH RCA with Sub Amp Input Wire Harness/Connector (Non-Navigation Compatible) by Charles Phillips

The review showing how this should be wired is correct, people will have trouble removing the tiny pins. To remove mine I used a small cotter pin because they have a flat surface that fits snugly into the removal slot on the connector. You simply straighten the cotter pin and press the slot until the plug comes out with ease, then proceed to the correct slot as stated by another reviewer. Cotter pins are very inexpensive at any dealership, or you can use a flat pin that fits in the slot. The small connector is mainly used for the remote cable to the factory amp, the two RCAs aren't really used as they are AUX inputs which seem to need a different signal to turn on than the diagrams I've been looking for . The front and rear RCA connectors are connected to the main connector, the subwoofer uses a crossover in the amplifier and borrows the signal from the rear speaker inputs. This cable is perfect for bypassing the original stereo and using the small Bluetooth adapter in the glove box. This way you keep the factory look but use a bluetooth adapter. To do this, you need an RCA cable to 3.5 plugs, two RCA Y-connectors - two sockets per plug and two RCA extension cables. The internal amplifier only requires remote power and an RCA signal for operation.