[SJK2]

Might not be right forum if so Mods pls move:

I have a 2000 ford expedition w/factory tow pkg:

pins 1-6 are all wired up for trailer all is well

I want to add 12v to spare pin #7 for accessories inside trailer can I tap pin
# 4 +12v battery charge or is there a better source???

Tia,
Steve