I trying to run a satellite radio antenna wire from the trunk to the dash through the back seat of a 1988 520SEL. I can get the bottom of the back seat out easily but I'll be darned if I can figure out how to get the seat back out. I hope somebody can help. Or, give me a hint on running a wire from the trunk through the back seat. I can see wire bundles leading from the trunk to the front but I cannot figure out how to get another wire to follow a wire bundle.