Cleaning exhaust and door interior - 125i M Sport

Hi guys,



Just wanted to quickly get some advice on cleaning my exhaust and door interiors. I'm afraid of using the wrong product and ruining the car so wanted to get it right the first time.



I have the following marks on my door due to gf's makeup. They can also be seen throughout the car...



http://imgur.com/uNeSYAS



I haven't used any product on my exhausts, and am not quite sure what material they are (125 M sport). I heard that using the wrong product can damage them, could you recommend what I should use?



http://imgur.com/hvJWwHU

http://imgur.com/YQuPuf9



Could you please recommend me any products I can use to deal with these? I am in Brisbane, Australia in case someone knows products I can get here.





Thanks guys!



PS. on a completely unrelated note, does anyone know if I can upgrade my sound system to the HK one? Bought the car without it and after hearing the amazing things about the audio system tempted to buy it.