Most likely in the front? Might be covered by a plastic cover so you'll have to take that off to get at it.
pontiac350enginebuild.blog.friendster.com/
A good auto audio shop can fabricate one for you. Or, you might try Crutchfield.com
You can find the 2005 Pontiac Sunfire air filter the inside of the air filter housing.. The air filter housing will be in the engine compartment.
Those bulbs are very common. You should be able to find one at Auto Zone/Checker etc. FriPilot
I would doubt that you can find an aftermarket dipstick. I'd scour the junkyards. You might find one through a dealership, but they'll want an arm and a leg for it.
Those bulbs are very common. You should be able to find them at Auto Zone/Checker etc. There are a few of them behind that PONTIAC name. You access them from inside the trunk lid.
Autozone.com has the diagrams you need
For the 2002 it was way up under the dash board on the driverside. We had to take the dash off to get to it. Ask at auto zone... they helped us.
You can find out by looking up the starter on the Auto Zone website. If the part numbers are the same for both years, they should interchange.
You can find quite a bit of info about Sunfires at this website http://consumerguideauto.howstuffworks.com/1995-to-2005-pontiac-sunfire-6.htm FriPilot
Drain all the coolant from the radiator. Disconnect the upper radiator hose from the engine. Remove the aluminum thermostat housing. Should be held in place with 2 bolts. There you will find the thermostat.
Check the "convenience center" located near the driver's side kick panel. If you don't find it there, it may be inside the steering column housing. FriPilot