Easy to install, only a couple of minutes

Mounts to the wing mirror just about, but you need to modify it to accept the bulb holder.

Poor quality and finish. I have included 3 photos to show the difference between a genuine one and this aftermarket one. As you can see the hole isn't formed correctly on the aftermarket one. I had to reem it out with a step cutter then cut the little tab squares in with a utility blade knife. Once this was done the bulb holder fit in as it should.There is also a small torq's drive screw that holds the unit into the mirror housing, this is slightly out of line but does work.On a whole the item is poor quality and bad finish but it does do the job if your prepared to do a little adjusting yourself first.