would it be okay to mix a positive wire with the black wire for light-up purposes? Because thats the only way I can get power to light it up. I have a three pronge SPFT illuminated switch. It goes "POWER, AC, GROUND." I spliced the black wire already to the Power and AC but was wondering if I could also tap a positive wire to the power also and just ground it for illumination. Just wondering if its okay, thanks.