I caution you to NOT solder those cables. It is not the best connection. Are you getting them terminated by the dealer or from the company? I don't know if AQ sells them terminated. Just my opinion. Others may say differently.
I typically use good ol' Kester 60/40 - I find it stronger than the silver stuff. I plan to use a crimp connection in addition to solder because the wires might be too small a gauge unless I want to double/ triple fold the ends.
Do you know of a solid core cable that has larger gauge wires?