I have some new never used Rev G4 accessories that I bought earlier this year. Listed prices are OBO and include shipping to the 48 states:

USB power outlet 860201261 $53
Heated visor plug 860201283 $43
Racing Skid Plate 860201579 $105
Tunnel Reinforcement white 860201584 $165
LinQ Tunnel Bag SR21 21L 860201740 860202449 $203