Heated mirrors very weak since glass replacement

Has anyone with an L&K replaced the auto dimming heated wing mirror glass with non dimming heated glass? 
My glass got smashed and as I don’t really like the dimming function, I just bought generic heated glass but it’s not getting hot like it used to. There appears to be some warmth but barely anything. It used to evaporate rain drops off the glass in a couple of minutes it got that hot. 
The connector for the dimming function is just dangling loose behind the new glass. I’m probably showing complete lack of electrical understanding here but if I cut the wires going into the auto dimming connector and joined them to close the circuit, would this bring back the heating function? Apologies if that’s a really dumb idea, haha. Open to any suggestions, I’d just rather not spend £130 a side for a dimming function I never use.