but the bulb is connected to the wires directly. and i tried to disconnect the bulb from the harness but i couldn't. I looked up the owners manual and it says i should contact the dealer for changing the bulb not mentioned in the manual, like the fog light bulb. i searched some auto light bulb websites and most of them separate the 07 Grand Prix Base and GXP. so is it true that i cannot replace the fog light bulb myself?