I bought led's too and have exact the same problem. Have no dashboard light now and neither license plate light bulb does not work. I didn't have time to look for the interior fuse box today.

Is it located to same place in every model of crossfires? I have model 05' coupe v6.

Also I would like to know if there is a + and - minus sides on the bulb because I didn't see it marked on the bulb.

Thank you already!