I assume this is a different connector than on the coupe right?
From what I can tell.. yes this is different than a coupe. The light bar is smaller on a roadster and I think it's a unique part number vs. the light bar on a coupe which might be a part number shared with an Audi A5 (and the connector would be also).
There are at least 3 different styles of OEM brake light bars.
CoupePN - 0R1470010 2002 - 2005 Coupe - USA
PN - 410945249A 2006 - 2010 LP640 Coupe - USA
PN - 006132280 Supplementary Brake Light Connector for Coupe years 2002-05
RoadsterPN - 4B9945097 2005 - 2010 Murcie and LP640 Roadster
Thanks,
Chris