My buddy David of http://www.ledvisionz.com
is selling LED dome lights. I got a blue one for my 2003 Celica GT and I love it! It's bright and was easy to put in. I had the hardest time finding the domelight for my car, since everywhere I went told me I have that bullet-looking bulb, the DE3175, but my 2003 Celica GT takes the BA9S fitting.
EDIT: I was just informed that the Celicas take different bulbs depending on whether or not they have a sunroof or not. If you have a sunroof, you need the BA9S fitting, if you don't have one, it'll be the DE3175 fitting (the one that looks like a bullet).
If you wanna see how mine turned out, PM me for a pic
I believe all of the new body style Celica's use the BA9S fitting, but I'm not exactly sure...but I'm positive that the Celica 2003 GT takes the BA9S fitting. See pic below, it is to show you what the BA9S fitting looks like.
You can get them here: http://www.ledvisionz.com
or you can email my friend David at: [email]LEDVisionz@yahoo.com.[/email] Any questions, just email!
Cost: 2 @ $8.99, and I think the price on the site is different, but I'm not sure, so for now, your best bet would prolly be to email David directly.
"bajoconstruction" This seller is located near: SCOTTSDALE, AZ