Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to install neon lights [title] Obtain your under car neon light kit, all the tools, and other supplies you will need for the installation. [title] Disconnect the vehicle's battery. [step] Pull off the negative battery cable.

Ending1: Remove the bulb pin and, if necessary, insert the replacement wire from the vehicle's battery. [title] Connect the battery, starting with the negative battery cable and working up to all leads (rear or rear) of the battery. Ending2: Once the battery is disconnected, disconnect it from the driver's side of the vehicle. If you have this cable, you will need these tools for the installation of neon lights (in addition to the spark plugs): [substeps] Under car/on battery socket wrench [title] Insert a spark plug into a spark plug slot. Ending3: Disconnect the vehicle's positive and negative grounding cable. [title] Remove drive stoppers and blind dowels from the rear of the car. Ending4: This is a safety precaution since you will be doing electrical work. [title] Find the best location for your neon light tubes.

Answer format: ending1/ending2/ending3/ending4