I have a 2004 9-3 w/a left low beam failure on the SID. These are halogen H7s. I have replaced the bulb and checked the fuse and still no headlight. I noticed the smaller bulb under the headlight (i assume a parking light of some sort) is also out. Could this be what is causing the headlight not to work? Are they connected somehow? What do I check next? Thanks in Advance.