OK I just did an oil change, and I hear something click while Im trying to pull out the oil filter. But after Im done everything seems to be cool. Until I turn on my stereo. I checked it, and I lost my constant 12V power. What do you think it could have been? I thought that it happened during the oil change, are there any wires back there that could do this? Any ideas? I cheked my fuse and its ok.