Speaker wires from the audio unit in the trunk on a 2015 GL1800

[johnnyandlizt]

I'm installing an inline amplifier, and trying to see if anyone knows what are the speaker wires coming off the audio unit in the trunk. I'm gonna clip the wire at the harness, put the amp inline and reconnect on the other side of the amp. The amp is speaker level. Thanks for any help...

[cihilb]

The plug for the rear speakers is under the seat behind the relay box. May be a black 4 pin connector, unless Honda changed the color. Located inside one of the rubber boots.