The holder is removably mounted on the air vent frame in a motor vehicle, and an electronic device, such as a GPS module or cellular phone, is supported on the front of the holder. The driver is able to see the display of the electronic device while operating the vehicle. The broken line immediately adjacent the claimed surfaces represents a boundary of the claimed design. All other broken lines depict unclaimed environment. The broken lines and unshaded regions bounded by broken lines form no part of the claimed design.