Well, the secret is that I am not a mechanic, but I have worked on so many cars, that as long as you give me a manual, or step by step instructions, I can disassemble and repair almost anything. Be it computers, houses, or cars. I just lucked out and got the jack of all trades genes I guess. Before you start thinking too highly of my skill though...I still can't get the bloody face of the air control system off to replace the fan speed switch though.