the product is great - the directions are no so and some of the parts are unnecessary and thus confusing.
Oh, and you need 4 hands to install it (think the two smiling figures on some Ikea products).
Why Subaru didn't make it standard is weird but I am delighted with it and its functions (esp. as a garage door opener).
Great plug and play upgrade from the basic Subaru mirror to a vastly better one that has auto diming, a compass and Homelink to open the garage door opener.