Gotcha. I recently had to source a cowl vent cover for my 02 GT (long plastic piece that covers the wipers -located at the base of the windshield). I searched the internet, tried
www.mustangsunlimited.com - to no avail. Finally struck up a conversation with a bodyshop, who got me a friendly discount from the local Ford Dealer ($100 vs $150 I was quoted). They delivered to the shop and I got the part the same day, too.
All the on line sources run dry when talking about late model plastic bits. If I spot a source I'll let you know.
tripleblack