LEDs are much different than light bulbs. You need a resistor in series with the LED to limit the current, and they are polarity sensitive, so they have to be hooked up with respect to positive and negative. If you use the right resistor you can make an led work with any voltage. If you want to put a lot of leds together you can use a PCB (printed circuit board) and solder the leds and resistors to it. In my doors I took out the light sockets and cut them out to fit a strip of leds to fit right in there. I used the original plugs too so that the lights are a direct replacement.
"-@--------@--" 1990 SSE " Black Ice " 220,000+ kms, GX3, sunroof
16" Streetwear Diablo wheels | Blazer Fog Lamps | Silverstar 9005 low beams | Mesh Grille | STB | '94 Top end | Delco Type 2 Ignition | Blue interior LEDs | LED 3rd brake light | Auto-dimming rear view mirror | Pioneer DEH-P7600MP | Rockford 5 1/4 Components and 6x9s
Daily driver : '95 Buick Regal Custom | Blue under dash LEDs | Infinity 5 1/4 components | 8 Inch sub under dash | 12 inch Bazooka sub in trunk | Rockford 4 ch amp | Trunk mounted EQ | Pulsing trunk LEDs