Please help me understand why does the rear bulb keeps blowing at lease 1 a month.
You buy cheap bulbs? ;-) Seriously, get a cheap digital voltmeter (preferably one that stores peak voltage) and monitor the actual voltage in the car's system. You may need a voltage regulator. Or, check to be sure that the bulb is being securely held in place. If the bulb is allowed to vibrate in the socket it will dramatically shorten its life. __ __ Randy & \ \/ /alerie's \__/olvos '90 245 Estate - '93 965 Estate "Shelby" & "Kate"