If you decide to use Blitz make sure to diluted 1-5 ratio. 1 part blitz 5 parts water or go to their website and download the pdf file for instructions. Good stuff!!!! :)
You can try the Cyan and Tangerine for polishing and the red for applying the sealant. You might have to look elsewhere for the green and black? Keep in mind that detailers have different likes and dislike when it comes to pads.
Griot’s uses 6.5” pads and yes stick with flat
These are some of the products I would use on an Audi.
Wheels:
P21S Gel Wheel Cleaner
1Z Blitz All Purpose cleaner (tire cleaner)
303 Aerospace Protectant (tires dressing)
Washing:
1Z Blitz (cleaning bugs, tar, road grim, wheel wells)
Optimum (ONR) for Clay dressing, quick detail spray...
Why don’t you start off with one of the Griot’s, Flex or PC kits? Has everything you need to start the learning process. I think some of them even come with instructional CD.
The products I use the most (google each product and you'll see uses)
Interior Care:
1Z Einszett Blitz, Cockpit...