Thank you for your reply, Guy. I have the drywall return you mentioned. My windows are wood but they were "made cheap to compete with vinyl windows" is what I have since learned.
So there is no trim around it. In fact, a window guy came today to measure and so I showed him an example of our wires and he couldn't believe they drilled through the bottom of the frame - he said water just pours down that hole (our current window frame doesn't use a weep system so it must just be slanted frame) and we probably have rot down there unless it happens to be outside of the "paper". I never thought of that. Even w/the sash down when it rains it can't be the best fit since the wire is "smashed in between the sash and frame" thus water could sneak down there. So maybe this wire is more trouble than it is worth... Thanks for letting me know where to place it if we keep them.