I thought my bulb replacement would be a 15minute job also...... no such luck. After the bulb was replaced, I pushed the headlight assembly back into the housing until I heard it click. I did not lock the assembly down using the hex nut. I then turned on the ignition and headlights to see if it was operational. None of the bulbs would light. I diagnosed the problem and found that the electrical connector was not fully seated. Once I locked the light down with the hex nut, the electrical connector snugged into place and everything was working fine. Hopes this helps someone with the same dilemna.