This diagram is ONLY for the SC, EX, and EX-P with the factory double-DIN radio, amplifier, and subwoofer. This is NOT for the DX or LX.
The first picture shows how the radio is basically wired from Honda. The radio puts out a line-level(low-level) signal to the amplifier thru the big black harness. It puts out a mono signal for the subwoofer via the small black harness with white guts. The amplifier then sends the amplified signal out to the speakers and subwoofer. Note the sub is dual voice coil but uses a mono signal.
The first picture shows how the radio is basically wired from Honda. The radio puts out a line-level(low-level) signal to the amplifier thru the big black harness. It puts out a mono signal for the subwoofer via the small black harness with white guts. The amplifier then sends the amplified signal out to the speakers and subwoofer. Note the sub is dual voice coil but uses a mono signal.