Loos like yours was damaged at around the same spot as mine, where the loom is clipped to the side hinge bracket. Mine were not as bad as yours, none btroken just chaffed revealing copper core, hence the blown fuse. Seems the clip puts too much strain on the loom and over time the wires get damaged. I fixed another members loom, his was green and crusty with many of the wires broken, new solder joints and heatshrink applied and all was restored. His symptoms were central locking failing and alarm triggering.