Hey guys I just installed a aem wideband and a autometer c2 vac/boost gauge. Everything works and wideband shows af readings hr thing is they don't have the background light on? I followed this install https://www.s2ki.com/s2000/topic/787...to-find-power/ and grounded the ground wire to the metal bar under the steering column right above your knees if you were sitting in the car. Any ideas? Gauges work but no background light. Thanks in advance