Using the OLM EZ Dash Mount is a breeze. First, make sure to purchase the magnetic mount separately as it's not included. Once you have it, simply pair the magnetic mount with the OLM EZ Dash Mount. You can then place your device on the magnetic part for easy access while driving. When installing, you'll need to remove the center dash trim. Be careful during this process to avoid damaging the trim. There's an extra self - tapping screw that you can drill into the plastic, but don't worry, it'll be out of sight. Check online for guides specific to your Subaru model to see how to remove the dash and access the necessary screws. As for maintenance, just wipe the mount with a clean, dry cloth every now and then to keep it looking good. Remember, if your device already has enough metal, you may not need the mounting plates that come with the Scosche Magnetic Flush Mount.