The 1 inch by 4 inch by 4 inch part is a fuse box. The big part under there with heater hoses on it is the heater booster.
open the hood, look behind the headlight for a round plastic device with wires running to it. Turn the plastice device to unlock it and pull back. the bulb is sitting in the plastic lock. The bulb on the drivers side is difficult to get to, the one on the passenger side is easily accessible for removal and practice before you try the drivers side.
its under the drivers side headlight accessed from under the car behind plastic cover
Remove the plastic cover over the drivers side headlights, then remove the headlight assembly(driver side only). The horn is directly underneath it - fairly easy to access, remove, replace, whatever you need to do. I replaced mine in no time.
Under the hood below the headlight is a black plastic assembly. There is one plastic wing nut. This is the adjuster for the headlight.
Hope I can explain this properly........ Lift the hood, position yourself in front of the bad headlight. See the black plastic shroud that covers the radiator, it runs the width of front of the engine compartment? See that little cutout in the black plastic? The cutout is in the plastic, directly above the headlight. There's an identical cutout above each headlight. Theres a little lever in the cutout, pull that lever straight up, that will release the entire headlight assembly.
two bolts on the top of the plastic housing - lift the plastic headlight out and unscrew the headlight from the bottom of the light- replace the bulb and be sure to get the plastic pins in the right spot before you bolt the headlight back in place.
horns are behind the front bumper. With the hood open, Open the drivers headlight (plastic) panel on top of the back of the headlights and look straight down the hole....
If they aren't severe, try Meguiar's Plastic Glaze.
Unlug the light harness, unscrew the plastic nuts, pull out the headlight. Reinstall new headlight, screw the plastic nuts back on and plug the light harness back into the the headlight housing.
The fuse panel is located in the drivers side footwell behind a plastic cover near the dead pedal. A listing of all of the fuses should be provided with the car.
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Headlight door