I've used Turtle Wax Chrome & Metal Polish on exhaust tips and chrome cladded wheels, and it worked great. This a new formula from what I used, but it should work similar. Mothers & Meguiars (and others) make similar cleaners.
Anyone have any suggestions on what to use on the metal chrome trim around the windows? Although very new it looks like my trim has some age imperfections. Would like to clean it up and wax. So far soap and water, detailer spray and spray wax have not helped improve its appearance. Want it to look smooth and brite