Using the OLM EZ Dash Mount is easy. First, pair it with a magnetic mount (sold separately) or a device holder from ProClip. Place your device on the mount, and it'll stay in a great position for you to see while driving. When your trip is over, just remove the device. For installation, you'll have to remove the center dash 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. Look up online guides for dash removal and radio installation specific to your Subaru model. You might need to remove some trim panels and use socket extensions to access the bolts around the radio mount. As for maintenance, just wipe the mount with a clean, dry cloth regularly to keep it in good condition. Remember, the OLM EZ Mount and magnetic mount are sold separately, so make sure you get all the parts you need.