I know it's kind of tacky, but I'm replacing the speakers in my doors, and I found these cheap tweeters that light up. There's a ring around them that glows blue.

I originally thought the lights were some sort of super efficient LED that were powered from the speaker wire, but they need their own 12V supply.

My question is if there is a power source going into the door that I can tap into. Most cars have power window switches in the door, but ours don't, and I'm assuming power only goes to the motors when the window is raised or lowered from the console. Same with the locks.

What are my options, if any?