2004 Toyota Sienna Navigation Manual - Page 526

04 SIENNA_U (L/O 0408) Place the transmitter with Velcro loop facing inside of box into the box. Make sure the transmitter button is located above button pins. Remove spacers from the center panel. Place one spacer on the pin that would be below transmitter button when the cover is closed. Close the cover. When the garage door opener transmitter is properly installed, you can operate the transmitter by pushing the center panel of the cover. 344 2004 SIENNA from Aug. '04 Prod. (OM45422U)