Hi, I'm a newby so please be gentle if I didn't follow the rules and guidelines (which I DID at least read). I would like to install an Auto-Dimming Rear view mirror with Homelink and Compass (normally a $295 accessory + installation, which I have found on Ebay from QuirkParts for $240, so I should save about $50 + at least $100 installation cost by DIY). My car is a 2016 CX-5 AWD Grand Touring WITHOUT technology package, but WITH rain-sensing wipers. I'm hoping the genuine Mazda mirror will come with the installation instructions, but does anyone who has done this have any tips for me? Such as, what additional materials I might need to buy that are not included in the installation kit? Or any tricks to do the installation without messing up? Also did you find the mirror somewhere at a lower cost?