How does battery charging work on 06 Tourmaster

[howermj]

Since it sounds like crickets on my previous question about a TM wiring diagram, I think I'll try again with a more focused question:

How does battery charging work on an 06 (or 07-10) Tour Master? Since we have a 3 bank battery system, I'm trying to figure out where to plug in my solar system.

Here is how I THINK charging works for all 3 banks. Am I right?

Chassis (engine) batteries:
- Charge from alternator
- Charge from shore power thru the 12V converter IF you have a Trik-l-Start installed (I don't yet, but soon)

House 12v batteries:
- Charge from alternator
- Charge from shore power thru 12V converter
- Charge from generator (and its 120V output) thru 12V converter

Inverter 6v batteries (used for powering 120v appliances thru inverter):
- Charge from alternator
- Charge from shore power thru Xantrex Inverter/Charger
- Charge from generator thru Xantrex Inverter/Charger

I'm looking to replace the 6v battery bank with a larger one (either AGM or lithium) and install solar, so I really need to understand how things work today and get the wiring right.