Changed mine today. Got a few surprises. One poster mentioned that the connectors under the front of the cover were in slots and the cover could be slid back. Not. They are in slots but there are some tabs on the cover that insert in slots on the base. That cover is not sliding anywhere. The horns were a tight fit especially the one on the right. No big deal but not expected.
Overall an easy job, but the "it will slide" slowed me down for too long.