AIO as in clean, polish, and wax/protect? The only modern product I've used for that is Megs NXT 2.0. I believe M21 2.0 is the same stuff optimized for DA use. I would assume both of these have been replaced with something newer.

 

I'n not sure about the clean part but even Blackfire has a "combo" (AIO type) product.

BLACKFIRE Total Polish & Seal

"BLACKFIRE Total Polish & Seal is a light swirl remover, pre-wax cleanser and paint sealant all in one!"

Like I said earlier (TP&S is probably a good product). I am personally not a AIO fan.