Okay im working on the trunk lightling. I used the same lights you used. I connected two of the and checked them with a 12 volt battery. Everything worked great. I then went out to my Smart car and did a quick connect to the light bulb housing and the lights came on for about a second and then went out. I figured the I had a loose connection so I went and checked it with the 12 volt battery and then now don't work? I something in my wiring crossed by mistake and they blew up.
I then connected and checked a single LED again everything worked good with a battery, until it got connect to the lamp housing. Now the this single LED wont work with a 12 volt battery?
I've only got two LED's left?
Is just one or two LED the problem? The car providing to much volts? Should I have connected all four or five of then because that would be to much volts coming from the car to blow because they are spreading the volts across 4-5?