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MetraOnline.com © COPYRIGHT 2021 METRA ELECTRONICS CORPORATION REV. 12/30/21 INST99-7821B
INSTALLATION INSTRUCTIONS
99-7821B
Attention! With the key out of the ignition,
disconnect the negative battery terminal
before installing this product. Ensure that all
installation connections are secure before
cycling the ignition to test this product.
NOTE: Refer to the instructions included with
the aftermarket radio.
KIT FEATURES
KIT COMPONENTS
• A) Radio trim panel • B) Radio brackets • C) Pocket • D) #8 x 3/8" Phillips screws (4)• E) Plastic panel clips (8)
• F) Axxess wiring harness and interface (not shown) • G) Antenna adapter (not shown)
TOOLS REQUIRED
• Panel removal tool • Phillips screwdriver
TABLE OF CONTENTS
Dash Disassembly
..................................................2
Kit Preparation .......................................................3
Kit Assembly
–ISO DIN radio provision with pocket ..................4
–ISO DDIN radio provision .....................................4
Axxess Interface Installation ............................5-14
Final Assembly ......................................................15
WIRING & ANTENNA CONNECTIONS
Wiring Harness: Included in kit
Antenna Adapter: Included in kit
A B C D E
Honda Civic (excluding LX models) 2016-2021
Visit MetraOnline.com for more detailed information about the product and up-to-date vehicle
specific applications. Note: Additional parts required to retain factory amplifier.
NOTE: TYPE R AND SI VEHICLES WILL NOT RETAIN THE REV MATCHING FEATURES.
• ISO DIN radio provision with pocket
• ISO DDIN radio provision
• Painted matte black
• Touchscreen display for climate
and personalization features
• Retains the factory backup camera
and LaneWatch camera
• Retains audio controls on the
steering wheel
• Provides NAV outputs (parking
brake, reverse, speed sense)
Visit MetraOnline.com for audio/video and steering wheel control
interface options.
Note: Additional purchase of AXSP-HN is required to retain factory amplifier.
Identifiable when equipped with factory sub-woofer or center channel speakers.
