Yes! There is a connection between the two games!
Actually, it's the other way around: CHAOS has the same girls from WIRE.
This is because CHAOS is the result of a collaboration with Mynomyni, so there is a direct connection between the two projects.
It's also connected to one of the possible endings planned for WIRE, but I don't want to spoil too much!
You'll understand the connection much better once you play further into WIRE.