jh3p...
in addition to reading the bulbs application post...
I also suggest you go with leds from V-leds on ebay. When I first purchased led's from another site, I got a pair and installed them... They were awful! The color looked good, but the light output was inferior to the stock halogens. I then bought the 9led bulbs from Vled. These things are SUPER BRIGHT! After replacing all of the lights with these, they give the car a completely different look at night.
Also, with the single leds, when you replace the map lights, you'll still see a slight glow at night, even when the car is off. With the 9led bulbs, you will NOT see this glow at night any longer. These bulbs are great!
http://stores.ebay.com/V-LEDS_...QtZkm
here's a link to the lights.. also regarding the orange light you speak of, i don't know if it can be replaced. never tried