2011+ euro spec mirror retrofit
Did you route the wiring up and around the tab with the push pin holding it like they did at the factory on the mirror I bet you didn't that's why yours reach the module.
The new mirrors have a slightly different design which requires the 4-5 inches longer wire then the old ones.
See the difference in wire length.



near my thumb there is a fastener that presses on that stud because the wires loop around this and then go out the weather stripping they need to be that much longer then the old design.



