Whether your car has or does not have ambient lighting from the factory you can add it or upgrade it to 64 Colors. The processes are slightly different.
Be warned though this is not a quick job. This YouTuber, Life of Emi, says it takes 2 days. If your car has 3 colors and you would like it to be 64 colors follow the instructions on changing out the harnesses here:
If your car does not have ambient lighting from the factory but you would like to install it follow these instructions here:
Check out DMP Car Design for the Lighting Kit that works for you.