It's my understanding that there are seperate fuses for the Ford's trailer connector, but power to the factory plug isn't my issue. It works fine. A safe method for powering the truck camper and a trailer at the same time is my objective.
Yes. The factory Ford hook-up has a 7-pin and a 4-pin connection, but you can only open one access door, 7 or 4, at a time. That's what got me thinking about amp draw. I'm sure it'd be a no-brainer to solder in a 4-pin pigtail for the trailer into the camper's 10 foot long cord. I'm trying to find out if that's advisable, or will I have problems?