LED's?

Where can I get em and what cheap ideas might you all have in where to use them in an older direct drive......this all started by installing some speakers that had blue leds built in on my older blue centurion.

I wasnt leaning that way at all, just happened to buy those speakers and now I think I would like to convert the cabin lighting and dash panel lighting to blue led.

Can perfect pass be converted to blue lighting as well?

Thanks...