Well i was going to hook up my indigow gauges and they wouldnt turn on...or evan when i went to hook up some LEDs for my gauges in my piller!....said i should cut into my dimer switch wires and hook it all up that way? but i got nothing! and evan when i just try to hook one led up it's soooo dim...if i try to hook my indiglows to the car battire it works just fine! soo why wouldnt my intierior harrnes not be runnin 12vs or what??