So far I only have the MY04 & MY05 sales brochures, so if anyone has the MY06-MY09 let me know the details and I can fill them in here to check against the Redbook information.
MY04 (Source: Subaru Sales Brochure)
2.5i
- MT & AT
Dual Front Airbags
Radio/CD
Height Adjustable Drivers Seat
Cloth Trim
2.5i Safety Pack
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
Radio/CD
Height Adjustable Drivers Seat
Cloth Trim
Sunroof
2.5i Luxury Pack
- AT Only
Dual Front Airbags
Cassette Player
6 Stack CD Player
8-Way Power Driver's Seat
Leather Trim
2.5i Premium Pack
- AT Only
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
VDC (Vehicle Dynamics Control)
Cassette Player
6 Stack CD Player
8-Way Power Driver's Seat
Leather Trim
Sunroof
MY05 (Source: Subaru Sales Brochure)
2.5i
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Radio/CD
Height Adjustable Drivers Seat
Cloth Trim
2.5i Safety
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
Radio/CD
Height Adjustable Drivers Seat
Cloth Trim
Sunroof
2.5i Premium
- AT Only
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
Cassette Player
6 Stack CD Player
8-Way Power Seat - Driver Only
Leather Trim
Sunroof
MY06 (Source: Redbook)
2.5i
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Radio/CD
Height Adjustable Drivers Seat
Cloth Trim
Optional
SatNav (need confirmation)
2.5i Safety Pack
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
Radio/CD
Height Adjustable Drivers Seat
Cloth Trim
Sunroof
Optional
SatNav (need confirmation)
2.5i Premium
- AT Only
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
Cassette Player
6 Stack CD Player
8-Way Power Seat - Driver Only
Leather Trim
Sunroof
Optional
SatNav (need confirmation)
MY07 (Source: Redbook)
2.5i
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
6 Stack CD Player
Height Adjustable Drivers Seat
Cloth Trim
Sunroof
2.5i Premium
- AT Only
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
6 Stack CD Player
8-Way Power Seat - Driver Only
Leather Trim
Sunroof
Optional
SatNav
MY08 (Source: Redbook)
2.5i
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
6 Stack CD Player
Height Adjustable Drivers Seat
Cloth Trim
2.5i SatNav Edition
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
CD/DVD Player
SatNav
Bluetooth
DVD Audio
DVD Video
Height Adjustable Drivers Seat
Cloth Trim
2.5i Premium
- AT Only
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
6 Stack CD Player
14 Speaker Stereo
Premium Sound System
8-Way Power Driver's Seat
Leather Trim
Headlamps - Bi-Xenon
Sunroof
2.5i Luxury
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
6 Stack CD Player
8-Way Power Driver's Seat
Leather Trim
2.5i Heritage
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
6 Stack CD Player
Height Adjustable Drivers Seat
Leather Trim
Sunroof
2.5i Heritage Luxury
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
6 Stack CD Player
14 Speaker Stereo
Premium Sound System
Height Adjustable Drivers Seat
Leather Trim
Sunroof
MY09 (Source: Redbook)
2.5i
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
6 Stack CD Player
Aux Input
Height Adjustable Drivers Seat
Leather Trim
Optional
Cloth Trim
2.5i Premium
- AT Only
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
6 Stack CD Player
Aux Input
14 Speaker Stereo
Premium Sound System
Sat Nav
DVD Video
DVD Audio
8-Way Power Driver's Seat
Leather Trim
Headlamps - Bi-Xenon
Sunroof
2.5i Heritage
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
6 Stack CD Player
Aux Input
14 Speaker Stereo
Premium Sound System
8-Way Power Driver's Seat
Leather Trim
Sunroof
2.5i Sport
- MT & AT
Dual Front Airbags
Dual Front Side Airbags
Curtain Airbags - Front and Rear
6 Stack CD Player
Aux Input
8-Way Power Driver's Seat
Leather Trim
Mesh Grill
Spoiler - Front
Spoiler - Rear
Optional
Cloth Trim

If I come across any 06-08 sales brochures, I'll add them in or let you know.