Amp Bypass Harness - Toyota Tundra 2005-2006 — 70-8121
Key features
- For select Toyota Tundra 2005-2006
- Factory subwoofer is not retained in select vehicles
- Note: Must have tweeters in front doors
- Plugs into the car's original radio connectors on one side as well as the factory amplifier
- Harness length is 204"
- Power harness is 8" in length
Amp Bypass Harness - Toyota Tundra 2005-2006 — 70-8121 is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Install an aftermarket radio in a 2005–2006 Toyota Tundra with the 70-8121 amp bypass harness. Its vehicle-specific connections plug into the original radio connectors and factory amplifier, while color-coded wires connect to your new radio.
Key Features & Benefits
- Factory connector adapters: Connect to the original radio connectors without cutting each factory wire.
- Radio power: The harness provides electrical power to the aftermarket radio.
- Color-coded radio wires: Make it easier to identify the wires to connect or solder to your receiver.
- Extended harness: The 204-inch harness offers length for routing during installation.
- Installation help: A tech support number is available seven days a week.
Technical Specifications
| Product | Amp bypass harness |
|---|---|
| Model | 70-8121 |
| Vehicle fitment | Toyota Tundra, 2005–2006 |
| Harness length | 204" |
| Power harness length | 8" |
| Factory subwoofer | Not retained in select vehicles |
| Front-door tweeters | Must have tweeters in front doors |
Why Choose This Product?
The 70-8121 is designed to connect an aftermarket radio through the Tundra’s original radio connectors and factory amplifier. Its color-coded leads give you the wires to connect or solder to the new receiver, while the vehicle-side adapters avoid cutting each factory radio wire.
Check the notes for your vehicle before installation: the factory subwoofer is not retained in select vehicles, and front-door tweeters are required.
Installation & Compatibility Notes
This harness is listed for 2005–2006 Toyota Tundra models and requires front-door tweeters. Connect or solder the color-coded wires to the aftermarket radio as appropriate; the vehicle-side connectors plug into the original radio connectors and factory amplifier.
A dash kit, antenna adapter, or special interface adapter may also be needed, depending on the vehicle and the functions you want to retain. Check your installation requirements before purchasing those parts.
Frequently Asked Questions
Which vehicles is the 70-8121 designed for?
It is listed for the 2005–2006 Toyota Tundra.
Does this harness require cutting factory radio wires?
No. Its vehicle-specific adapters connect to the original radio connectors without cutting each wire.
Will the factory subwoofer continue to work?
The factory subwoofer is not retained in select vehicles.
Are front-door tweeters required?
Yes. The product notes state that front-door tweeters are required.
What other parts might the installation need?
Depending on your vehicle and desired functions, you may need a dash kit, antenna adapter, or special interface adapter.
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