Light up your vehicle with this Koolatron 15 Blue Neon Tube. The neon tube makes a bold statement and can be mounted inside or on the outside of your car. Side Mounting: Mount the tube on the chassis or the vehicle frame as close to the rocker panels as possible. Rear or Under Grille: Mount the tube on the chassis or the vehicle frame as close to the vehicle front or rear as possible. Interior: Find a safe flat surface suitable for mounting such as under the seats or on speaker boxes.