Help Wiring New Converter to Motorhome

Motorohme is a 1986 glendale sterling and the allanson convert is an all in one unit. It appears as though I can unblock the 120 volt portion withe the fuses...although I have not yet tried. The charge converter is hooked up to a 15 amp 120 volt breaker which I assume goes to the transformer on the 12 volt side. Regarding the 12 volt side it has 15 amp bus fuses directly on the front panel and it's wired in. Once removed I'm left with the white 10 awg ground going to ground in the engine chassy not the negative terminal, and a red 10 awg going to the battery solenoid aswell as the five 10 awg wires on all the 12 volt appliances and the green ground which is to ground the converter chassy to the frame under the motorhome. This part i did not mention but there is a black 10awg from the 12 volt positive tied in going somewhere to the back of the motorhome with no fuse....it appears as someone ran this for the rear lights and a quick connection to the battery, either way i will leave that and just hook it up to the dc distributuon block on a 15 amp fuse. I will try and upload a wiring diagram later tonight so show what I plan to do.