About the Metra 70-9003 Receiver Wiring Harness
Metra 70-9003 Receiver Wiring Harness
Metra 70-9003 Receiver Wiring Harness
This vehicle-specific wiring harness makes connections between your new car stereo and your car's electrical system. It includes a wire bundle with a connector and a separate red wire for the accessory (12-volt switched) connection. This individual 42" red wire must be run from the receiver to the vehicle's fuse panel to provide 12-volt switched power.
First, attach the colour-coded wires on your Crutchfield-supplied harness to the wires from your new stereo. If you're not using a soldering iron, we recommend that you purchase some wire connectors to secure the connections. Check out our handy article on three ways to connect the wiring harness here.
Now, once this harness is connected to your new stereo, you'll be able to plug right into your car's factory radio connector. This harness makes installing your new stereo easier, and allows you to put the factory radio back when you sell your vehicle or return it at the end of the lease. A detailed instruction sheet comes with the harness. Warranty: 60 days.
Please read this important note: This harness may not contain provisions for every wire needed to complete your installation, and it will not accommodate special navigation, video, or factory steering wheel control connections. You will need a special adapter if you want your factory steering wheel audio controls to work with your new stereo.
Connections:
- 12V constant power
- 12V switched power
- chassis ground
- power antenna turn-on
- left front speaker +/-
- right front speaker +/-
- left rear speaker +/-
- right rear speaker +/-
What's in the box:
Metra 70-9003 Receiver Wiring Harness owner's manual
- Receiver wiring adapter harness
- 42" Red wire (a Molex plug insertion pin on one end and a female quick slide with fuse tap on the other)
Reviews (90)
Customer reviews for Metra 70-9003 Receiver Wiring Harness
Loading reviews...
Average review:
4.0 out of 5 starsCustomer photos
This review was collected as part of a promotion
Pros:
Cons:
More details on the Metra 70-9003 Receiver Wiring Harness
Product Research
Features
Crutchfield Wiring Harness: Crutchfield wiring harnesses prevent you from having to cut your vehicle's factory radio plug when replacing your factory radio with an aftermarket head unit. Simply solder or crimp the Crutchfield wiring harness to your aftermarket head unit's harness (solder & crimps not included), plug the aftermarket head unit's plug into the rear chassis of the aftermarket head unit, and plug the Crutchfield wiring harness into your vehicle's factory radio plug.
Note: Installation tools, hardware, & accessories are not included & sold separately. Please see the Accessories tab for recommendations & availability.
Wiring Notes: If the Crutchfield wiring harness is not equipped with a ground wire, you will need to ground the aftermarket head unit's ground wire to the metal chassis of your vehicle. Some vehicle's may require you to bypass the vehicle's factory amplifier (in another location from factory radio) or hardwire certain connections. If your vehicle is equipped with factory steering wheel controls, an additional adapter is required and sold separately.
Wire Code Chart:
| Wire Color | Function |
| Red * (Long individual wire) | +12 Volt Accessory (Not in harness) |
| Yellow | +12 Volt Constant |
| Black | Chassis Ground |
| Blue | Power Antenna |
| White | Left Front Speaker + |
| White/Black | Left Front Speaker - |
| Gray | Right Front Speaker + |
| Gray/Black | Right Front Speaker - |
| Green | Left Rear Speaker + |
| Green/Black | Left Rear Speaker - |
| Violet | Right Rear Speaker + |
| Violet/Black | Right Rear Speaker - |
*The individual 42" red wire included with the harness must be run from the receiver to the fuse panel to provide 12 volt switched power.
The Crutchfield Car Selector: Please visit the Crutchfield Car Selector for your specific type of vehicle.
Loading accessories...
Customer Q&A
3 questions already asked
Loading articles...
The harness worked great and was a breeze. My only complaint is the fuse box jumper wire required for key power. I'd rather it be worked in somehow other than that way.
Matthew from GA