Yeah, your setup is muy
. Use CCFL for the footwells and skip below the seats (#2) because they're bright enough. Why you would put light in your ashtray is beyond me
. I'd gut it out and use it for your lighting switchport. Just do the lower vents and not the upper.
For the speakers and tweeter domes, use LEDs. Use a couple of colors, not just red. Makes it look more interesting, just don't use too many colors, it will look worse.
Don't use too much lighting either. For LEDs, try local auto parts store.