Heated mirror glass issue

[Horrgakx]

https://ibb.co/sdSS891n

I bought replacement mirror glass (both sides) as the heating elements were reported as open circuit but I still don't think the heating side is working.

See the pic linked above. This is the old mirror on the offside just before I removed it.
I assume the heating circuit is the one to the right of the photo with the spade connectors, and the anti-dazzle is the plug to the left. Can anyone confirm this?

I'm not sure why one of the spade connectors is very very short, it made fitting the replacement very difficult with my sausage fingers. On the near side mirror the wires were the same length.

When I got the glass off I tested the resistance between the spade terminals and on both of the old glass it was open circuit. Unfortunately I didn't test the replacements before they went on.

As I said the heating still doesn't appear to be working. I think the fuse is ok but because of differences in the owners manual and the actual fuse layout I'm not 100% sure which fuse it is (this thread; https://forum.a8parts.co.uk/showthread.php?t=17310).

Also, are the old mirror glass' destined for the bin? Or would they be of use to anyone else?

Thanks