heated mirrors

Hey there, this forum has been very helpful to me and i am very appreciative to all of the members who have responded in the past making this an incredible resource. I finally have an issue someone hasn't already provided a solution for here on the forum and i'm hoping i can get some help from...

I have a 2005 "egg" with heated mirrors. My passenger side mirror seems to heat quickly and the fog/ice goes away within 2 minutes of turning on the feature, but the driver's side does not seem to heat or heats slowly. Does anyone have any experience with troubleshooting a heater in these...