Good for you. Please post what you find out. Those jumper batteries are handy. Might need one of them too!Ron
I also learned the hard way to carry a set of 25' jumper cables . It's not like we don't carry around lots of power sources, you just need a way to connect them.The 'white switch' to connect the house batteries has changed in function over the years. On my 2017 it activates a solenoid that connects the house batteries to the truck battery. This is a trickle charge type of system. it's a small wire and is fused at (I think) 5 amps. So trying to start the truck right away is just going to blow the fuse. Don't ask how I know that. So turn on the key, hit the white switch and wait a bit before starting.On older models I was told you had to hold the switch in.I also have a : NOCO Genius jumper battery that has proven itself several times. Hard to believe it will start the truck as small as it is but it works. It also has USB ports to charge your cell phone or whatever. Highly recommended.