i have a 04 oem sound system...i wuz wondering if its possible 2 have a clear fm modulator sound on my unit so i cud use my psp for mp3 purposes?a guy from some sterio shop told me that it wud b possible but???i woudent get a 100 percent clearsound of it.he told me that il get alot of distortions if i go tru mountains etc...next option is 2 get my system replaced??which is i dnt knw wuts d best unit?any body out there using a psp on a o4 unit????any one?