Hey i have a 2010 jeep jk wrangler i purchased used. Any ideas on why the over the spare tire brake light will not light up? I have put 12 v dc directly to the light and confirmed the light is good. Ive checked all my fuses and they are good. i have no power at the connector leading from the body to the light. my body brake lights work as advertised just not the one over the spare tire carrier. any ideas?