My dashboard dimmer does not work, ac knobs lights, shifter lights and tail lights do not come on.I checked the tail light fuse and relay and they are fine.This started a couple of days after a new radio installation, using a harness from crutchfield and the PAC OEM-4. The new radio works fine. Any suggestions?It might be the DRL relay??? Does anyone know where that is located on the 2005 vibe?