Cleaning non clear coated trim

[theory816]

Hi all, my question is how do you clean the non clear coated plastic trim? I applied a layer of Opti seal to this trim but it still shows up streaky and dirty. I even washed it with soap to no avail. I want to be able to get all the dirt off of it.
http://i.imgur.com/tA1l81n.png

[theory816]

Im an idiot. Should have used the search button. Please delete thread mods.