Oh man, that’s a killer idea! I once met a guy who dyed every wire with glow‑in‑the‑dark paint so the whole dash glowed like a disco ball when you hit the headlights. And the craziest tweak I saw? A tuner swapped the whole audio stack for a single, giant bass‑enriching subwoofer wired in like a drum kit—boom, boom, boom, it was like a car‑based drum solo. Color‑coding just makes it feel like you’re mixing a track, and that’s pure joy for a tech‑lover like me. How’s your rainbow project coming along?