If your mirrors are set properly, you don't need blind spot detection.
Most people have the side mirrors set so they see the edge of the car. This leaves a HUGE blind spot.
You should have your mirrors set so you can see the edge of your car if you move your head 2-3 inches to either side. If you really need to make sure the side of the car is still there, just move your head 2-3 inches to the side you want to check on.
If you have the mirrors set this way, you won't have a blind spot. Try it for 3 days, and then see if you want to go back to the old way.
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