Neo Wedge LED's

[Vinceb]

Originally Posted by CAyaris

Are you guys using resistors cause i have had leds in my car from radio shack now for 9 months and have never had one flicker die or anything and same with the other cars i have done

You shouldn't need to replace an LED each year , especially in a car where the lights aren't always on. one problem could be the soldering, if your iron is too hot, or you're keeping the heat on it for too long you may be damaging the LED.
-or-
As CAYaris said: when adding LED's to a car, you need a resistor.
You've got to look at how much current is flowing through the circuit because most LED's run on ma (milliamp's) of current. - Also LED's (unless they are specifically made to) don't flicker in a DC environment, they'd either be on (bright or dim) or off .