Use a wire splice to connect all the brown wires together.
http://www.amazon.com/Solderless-Wire-Quick-Splice-Connector/dp/B009O0NZ6S/ref=sr_1_7?ie=UTF8&qid=1461602329&sr=8-7&keywords=16+gauge+wire+splice
2022 Silverado 3500 High Country CC/LB, SRW, L5P. B&W Companion Hitch with pucks. Hadley air horns.
2004 32' Carriage 5th wheel. 860 watts of solar MPPT, two SOK 206 ah LiFePO4 batteries. Samlex 2,000 watt Pure Sine Wave Inverter.