I just replaced a headlight bulb in my 2001 Pontiac Grand Prix GTP (with lovely galaxy silver metallic paint) and took pictures of the process.
Replacing the turn signal bulb doesn't require any tools, but you'll need a wrench or socket to remove the headlight assembly and access the headlight bulb.
Here's my guide -
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I hope someone finds it to be useful.
Cheers, Paul Michaels Ft. Lauderdale, FL