I recently purchased 1157 spider leds for the tail lights in my na to replace the dull halogens that came with it. When istalled into the tails they would NOT light up, even if the car was on. So i became skeptical as to if the lights even worked at all (typical ebay leds). I intalled them in the front turn signals to make sure, and they worked just fine. Is there something im missing about the tail lights?