I am in exactly the same spot and having the same problem. I found a post some time ago that included a generic wiring diagram here:
https://intellitec.com/bi-directiona...r-relay-delay/
but would really like to see a diagram specific to the Axis/Vegas, one that might include locations as well as wiring. Am I dreaming??? I know other members have found them, but I have yet to come up with the right search term to take me to one.
Anyone know if our rigs have the isolator relay AND the two disconnect relays?? There are many advantages to having the sophisticated software in the DC2DC controller besides just keeping the alternator from frying, including isolation of the chassis battery from the house battery and proper conditioning of the charge rate specific to the lithium battery. Any help would be great!