I got the self dimming mirror and the fuel door switch. Is it easy to install these options? I also got the heated leather seats and I need to know what wires go to what. I clipped the plugs but need to know what wire gets power etc. Any help on the mirror (4 wires)? There is a thread that has pictures but it's a newer model and I can't find anything on the seats or the fuel door switch. Any help is appreciated! Thanks again