Need help on an install please...
So im trying to make an aftermarket speaker system (boss audio) work(power on/off) on the accessory switch. I found the plug under the seat, bought the "y" connector that goes into it. Made a plug with parts from H-D dealer to plug into one of the female ports and wire to the power & ground of the system. But when i use the brakes, it vuts it out and then it powers back up when i let off the brakes. What am i missing & not doing right? And and all help is much appreciated, pictures included to hopefully help try and make sense of this.



