So!
I tried to take my wire apart before finding this video and succeeded in snapping off pretty much every single tab in the track connector pieces. I've already ordered that replacement wire off Amazon but now I'm faced with a choice:
Is it safe to assume this wire will never have to be replaced and I can use a more permanent glue?
Or is there a glue Lego hobbyists recommend for this type of operation that can be pulled apart with force should I ever need to get back inside?
Edit: In another post I've seen someone interviewed LegoLand builders and they use Elmer's White Glue to join pieces. Model Cement has also been listed as an okay permanent solution if you're careful. But I'd suspected super glue was a no-go due to what CA does to ABS! (noticed some discoloration on some Chinese made tiered display stands I bought a few years back and glued together)