Driver's side has 3 wires:
2-White w/yellow
1-Brown

Passenger has 2 wires:
1-White w/yellow
1-Brown

Before I wire it up, are they just in a series?

Series would be the wrong term (they are actually wired in parallel), but I think I know what you mean. The 2nd white/yel wire on the drivers side is just the wire that jumps across to the passenger side for power. Connect them together on the drivers side.

Demick

thanks