This really isn't my area... but I'll give it a shot. Since that speaker doesn't work, the wires must have a nick (or cut in half) somewhere. Could be anywhere from the radio to the door obviously. 1st area I'd check is where it goes into the door (by the hinges). Seems like a lot of movement there, might have worn it's way through the wire or something.
Good luck finding it, I hate tracking down electrical problems.
Joe, I had to... A felow forum member had a gun to my head and forced me to. lol, ok not exactly. I'm planning on getting into racing (not helping anymore, actually driving finally) either next year or the year after. So the car payment had to go, and I needed a new vehicle to tow a trailer (and one that liked snow). So bye bye big black, I know you have a very nice home now.