In Tennessee, which flashing lights are you permitted to display to the front of a vehicle?

• Only factory installed emergency flashers
  Explanation:

  "No vehicle operated in Tennessee is allowed to be equipped with any flashing lights in any color or combination of colors that display to the front of the vehicle, other than factory installed emergency flashers. There are exceptions for certain vehicles."
• Only red or blue
• Any color or combination of colors
• None of the above