Too many threads to point you in the direction of just one. Use the search function on the home page with "Cladding Treatment" as the search criteria.

Personally I use Mother's Back To Black. I like it because it goes on easy & you can be messy with it (get it all over your paint & it won't hurt anything). The down side is that it doesn't last very long between treatments (probably about a month). You can pick it up at AutoZone, Advanced Auto .... pretty much any place that carries car products.

Caution though (& this is the reason that I stick with B2B, Meguires can & does discolor painted surfaces). If you're a good detailer & not messy like me, then Meguires is probably a good product too.

Enjoy reading all the threads on the subject.