I just looked at the parts fiches for 02 and 06, the speaker box on the rear has the same numbers and the differences are the color numbers only so the should be the same size speakers.I looked at the thread and similar threads. Still can't find any telling me the Polk DB-521 will fit the rear housing of an '02. Saw threads for 2006-2010 but I believe the rear pods are a different.
I didn't see them in the search so you may have to remove some plastic to get the 521 to go in if the covers fit over them. Pull it apart and see what you think and post back.I thank everyone for their replys but the question wasn't answered. I'm only interested if the Polk DB-521 speakers will fit the rear pods of an '02 Goldwing. They are bigger (4 11/16" cutout vs 3 11/16" and deeper (2 5/16" vs 1 15/16") than the DB-501s.
The Pioneers Chet used are discontinued .