Whistling sound resolved...
Took my car into the dealer to have the ASS re-code and to check a whistling sound coming from the passenger side A-pillar area when driving at highway speeds. Got the re-code done and the whistle resolved. It was the windshield side trim that was not tightly attached and would let air through a small gap hence the whistle. Attached is the technician's notes and a picture of the windshield trim.
'03 325i OrBlu, MT, PP, SP
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