For the 2005 Acura RSX, the low-beam headlight uses an H1 bulb, while the high beam uses a 9005. The supplied fitment data does not list a fog-light bulb for this model year.
The 9005 bulb is also specified for the daytime running lights. Exterior lighting includes 7440A bulbs for both the front and rear turn signals, while the brake and tail lights use 7443R. The center stop light uses a 7440 bulb, and the reverse light uses a 921.
For smaller exterior lamps, the front side marker uses 2827 and the rear side marker uses 168NA. Parking and license-plate lighting may use either 168 or 917 bulbs according to the supplied data, so compare the existing bulb before ordering. Interior applications include 2721 for the auto and courtesy lights, DE3175 for the dome and map lights, DE3021 for the glove-box light, and 168 or 917 for the trunk light.