I assume these are smaller gauge wires. They could go to many different things. One may be positive and the other negative. I think it's unlikely that both pos or both neg. That would not make a closed circuit. Not knowing what they go to I would not connect them randomly.
Do you have a battery monitor, a solar controller, has anyone else added after market items?
Fred & Denise (RVM157) New Mexico
2007 Excel Classic 30RSO & Coach House 272XL E450
2007 RAM 3500, Diesel, 6Spd Auto, SWD, 4x4, CC & LB