Automotive / Car Audio
Metra 108-TO7HG Dash Kit Installation Guide for 2020 Toyota Highlander
Step-by-step installation guide for the Metra 108-TO7HG dash kit in a 2020 Toyota Highlander. Includes dash disassembly, radio mounting instructions, and wiring connection tips.
Table of contents
Manual images
Click an image to enlargeQuick Guide
This installation kit is designed specifically for the 2020 Toyota Highlander (excluding models with the factory 12.3-inch screen). It is intended for use with Pioneer 8-inch modular radios. Before starting, ensure the vehicle has sat with the ignition off for a few minutes to prevent electrical issues. Always test the radio for proper operation before fully reassembling the dashboard.
Tools Required
- Panel removal tool
- 10mm socket
- Phillips screwdriver
Dash Disassembly
- Use a panel removal tool to unclip and remove the trim panel located behind the radio.
- Once the trim is removed, locate and remove the (4) 10mm screws securing the factory radio.
- Unclip, unplug, and remove the factory radio and panel assembly.
- Remove the (4) Phillips screws securing the factory radio to the dash panel.
Kit Assembly
- Secure the radio brackets to the radio chassis using the (4) screws supplied with the radio. Note: The display screen and radio chassis use different types of screws; refer to the radio's installation manual for hardware selection.
- Slide the radio chassis into the dash and secure it using the factory screws.
- Secure the radio display to the screen brackets using the (6) screws supplied with the radio.
- Place the radio trim panels into the factory dash panel, then install the radio screen assembly and secure it using the factory screws.
- Connect the radio display to the radio chassis.
- Reassemble the dash in the reverse order of disassembly.
Wiring and Connections
The wiring harness and antenna connector are located in the dash. Metra recommends using the following parts (sold separately) for proper integration:
- Wiring Harness: 70-1765 (non-amplified)
- Antenna Adapter: 40-LX11
Visit metra-online.com or axxessinterfaces.com for additional audio and Steering Wheel Control (SWC) interface options.
Technical Support
If you encounter difficulties, contact Metra Tech Support:
- Phone: 386-257-1187
- Email: [email protected]
- Hours: Monday - Friday 9:00 AM - 7:00 PM, Saturday 10:00 AM - 7:00 PM, Sunday 10:00 AM - 4:00 PM (Eastern Standard Time)
Official resources from the manual
Practical help
Common problems
Radio display or chassis not fitting correctly
Ensure you are using the correct screws for the display versus the chassis, as they require different hardware types.
Dashboard damage during removal
Always use a dedicated plastic panel removal tool to prevent scratching or damaging the dashboard trim.
Before use
- Verify vehicle is a 2020 Toyota Highlander without the factory 12.3-inch screen.
- Ensure you have a panel removal tool, 10mm socket, and Phillips screwdriver.
- Let the vehicle sit with the key out of the ignition for a few minutes before starting.
- Purchase required wiring harness (70-1765) and antenna adapter (40-LX11) separately.
- Test the radio for proper operation before fully reassembling the dash.
Specs in practice
- Pioneer 8-inch modular
- The specific radio type this kit is designed to accommodate.
Images and diagrams
- Figure A (Disassembly): Shows the location of the trim panel to be removed.
- Figure B (Disassembly): Shows the removal of the radio and panel assembly.
- Figure A (Assembly): Shows attaching the radio brackets to the chassis.
- Figure B (Assembly): Shows attaching the display to the screen brackets.
Model compatibility
- Designed for 2020 Toyota Highlander.
- Not compatible with vehicles equipped with the factory 12.3-inch screen.
- Designed specifically for Pioneer 8-inch modular radios.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.