I'm suffering from a small problem that's just big enough to be annoying. On my driver's side door, usually when I try to lock or unlock it, it makes that delightful little mechanical sound and easily turns over. Now almost every other time, it doesn't turn or turns about 15 degrees then refuses to turn, no more mechanical sound and nothing happens. If I use a little more force, it locks and makes a very very feint mechanical sound. Other times, it makes a dying mechanical sound and does its job, but its definitely not as easy to turn as it used to be. Is this a relay problem? a fuse problem? Tell me doctors and give it to me straight! Is this going to cost me my liver!? Oh, also I noticed this problem after I had a cd deck installed in my car, you think they screwed something up?