I probably didn't state the right terminolgy for the acsessory plug, but this is it in the pic
It's the black plug left to the white one.
Unclip the blank already inserted. You will need to source 2 pins to fit into the blank one.
I got my pins from a shop that installs radios, ICE etc, they let me sift through some old looms for the pins.
There is a name for the plug/pins which I've forgotten.
If you use this socket to power your phone or Nav you won't drain the battery, as it should power off when the ignition is turned off.
If you use direct wiring to the battery using a USB without a switch it will drain the battery if the bikes laid up for several days. I'm sure many of you guys already know this.
There is a member who's already done this with some good pics to show and explains well but Alzheimer's kicking in,the names gone.