I have seen many different colors of lights inside the cars I would go by and talk to them and tell them what you want to do
Also Top Hid can help you with any questions you have. I believe as lo h as the lights inside the car don't obstruct your vision, you can have them on inside.
Any light other than the police car light ( blue & Red). So don't use light like construction or security because you are public not work in any of these situations .
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