Thor Outlaw 29J Alternator Charging Cable

[drgslayr]

I wanted to install a DC to DC charger to limit the current from the alternator but I can't seem to find where the cable connects to the house batteries.

I tried tracing the cable from the solenoid back but it goes into a large bundle. I was hoping someone knew where it connected so I don't have to start cutting the bundles apart.

Thanks
Ron

[Pillbox]

Do you have a BIM or Bird?
You should. The hot from chassis battery will be there.
Terry