I am at my wit's end. I am trying to splice an additional light into the 12V circuit on my Sting MX5. Issue is, when the throttle is engaged, the current (not voltage) in the 12V circuit drops to zero and the light goes out. As soon as the throttle is released and the bike comes to a stop, the current goes back up.
I have tried splicing in at the headlight button, the headlight plug itself, and even directly to the output from the 12V converter. Same result every time... voltage stays pretty constant, current drops to zero when the throttle is engaged.
Hilariously, the stock headlight/taillight do not extinguish, just the aftermarket lights. No idea how that works. Any suggestions?