Ok, I went to The Retrofit Source online: headlight upgrades for all applications and it looks like the kit they sell for my low beams is 9006: Morimoto Elite HID System - HID Component Kits from The Retrofit Source Inc. I'm assuming this kit uses my existing housings/lenses?
Please correct me if I'm wrong but this is what I am getting out of my research:
1) A PROJECTOR IS THE "FISH EYE" LOOKING HOUSING WHICH HOUSES THE HID BULB
2) A RETROFIT IS WHERE I WOULD HAVE TO CUT OPEN THE STOCK LENSES TO MODIFY/ADD THE PROJECTOR
3) A COMPONENT KIT IS WHERE I WOULD NOT HAVE TO MODIFY THE LENSES AND ONLY NEED TO INSTALL THE BULBS AND RUN POWER TO THE BALLAST.
I ALSO CAME ACROSS THIS SYLVANIA PAGE WHICH SHOWS YOU WHICH BULB IS RIGHT FOR YOUR CAR:
Lamp Replacement Guide Home
Here's what it said to use for my car:
Part #s and Upgrades available for:*2004*PONTIAC*Grand Prix*
Low beam headlight
9006
High beam headlight
9005
Parking light
3757A
Front turn signal
3757A
Rear turn signal
3057
Tail light
3057
Stop light
3057
Fog/Driving light
898
License plate
194
Back up light
3157
Front sidemarker
194
Rear sidemarker
194
Glove box
194
Map light
2825
below info is from http://www.naohid.com/NewsView.asp?ID=82&SortID=11
Bulb Cross Reference
880 = 884, 885, 892, 893, 899 have same base PG13, different wattage. These are single filament bulbs and use as foglight bulbs.
881 = 886, 889, 894, 896, 898 have same base PGJ13, different wattage. These are single filament bulbs and use as foglight bulbs.
H1, H3, H7, H8, H9, H11 are single filament bulbs, they use as single low or high beam or as fog lights.
H4 = 9003, HB2 is double filaments and is used for both low and high beams in the same bulb.
H10 = 9145
H12 = 9055
H13 = 9008 is dual filaments and is for both low and high beams.
HB1 = 9004 is dual filaments and is for both low and high beams.
HB3 = 9005
HB4 = 9006
HB5 = 9007 is dual filaments and is used for both low and high beams in the same bulb.
