2020 Nissan Altima Accessories and Parts available at All Things Nissan. Start your easy shopping experience and select a category to search for Genuine OEM and Aftermarket accessories for your 2020 Nissan Altima. The accessories we offer include 2020 Nissan Altima Cargo Accessories, 2020 Nissan Altima Floor Mats, 2020 Nissan Altima Electronic Accessories, 2020 Nissan Altima Interior Accessories, 2020 Nissan Altima Exterior Accessories, 2020 Nissan Altima Safety and Wheel Accessories.