since these are port-installed options (PPO), you can probably install them yourself or have your dealer do them:
Floor Mats, Carpet, 2004 Prius
PT208-47045-10 Ivory PPO *1 CF
PT208-47045-11 Dark Gray PPO *1 CF
*1 Includes Trunk Mat
Front End Mask
TBD
License Plate Frames by Grenada(r), all years/models
PTS03-0001C Chrome License Plate Frame
PTS03-0001G Gold License Plate Frame
PTS03-000BK Black License Plate Frame
Mirror, Auto-Dimming, 2004
PT374-47040 With Homelink PPO N1
Rear Bumper Applique, 2004
PT747-47040 Rear Bumper Applique PPO EF
Vehicle Intrusion Protection, 2004
08586-47840 RS3200 Security System Upgrade *1 PPO V5
08586-47840 GBS *2 PPO V2
*1 Applicable to vehicles equipped with Factory Keyless Entry System.
*2 Must be equipped with factory Security System.
Wheel Locks, Alloy, 2002-2004
00276-00900 14" Factory Alloy Clear Chrome PPO WL
Ashtray, 2004
08171-47800 Ashtray
Audio, 2004
08601-47800 6-Disc In-Dash Changer PPO P6
08695-00370 Wire Harness *1
08695-47800 Installation Kit *1
*1 Required to complete installation
Cargo Mat, 2004
PT206-47040-11 Dark Gray PPO *1 CF
PT206-47040-10 Ivory PPO *1 CF
*1 Included in PPO CF with Carpet Floor Mats.
Cargo Net, 2004
PT347-47040 Cargo Net PPO GN
Cargo Tote by Nifty Products, 2003-2004
PTS07-00020-02 Black PPO 9G
First Aid Kit, 2003-2004
PT420-03023 First Aid Kit PPO 3Z
I'll note that adding a factory Navigation system to a classic Prius would not be cheap/easy (missing over $4000 in parts, price not including the lots of labor involved)...
The Navigation system, because of the added microphone for the Bluetooth and voice commands, would have added wiring compared to a classic Prius...