About the Metra 70-7863 Receiver Wiring Harness
What's in the box:
Metra 70-7863 Receiver Wiring Harness owner's manual
If you need assistance accessing this owner's manual, please give us a call.- 7.5" Receiver wiring harness
- 13" Subwoofer input harness
- 12" Aux input harness
Other info:
- MFR # 70-7863
- Item # 120707863
- California customers: Please click here for your Proposition 65 WARNING.
More details on the Metra 70-7863 Receiver Wiring Harness

Product Research
Wiring Harness: This wiring harness prevents 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 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 wiring harness into your vehicle's factory radio plug.
Wiring Notes: If the 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 SWIC adapter is required & sold separately.
Wire Code Chart:
(Power/Amp Harness)
Wire Color | Function |
---|---|
Red | +12 Volt Accessory |
Yellow | +12 Volt Constant |
Black | Ground |
Blue/White | Power Antenna/Amp Turn-On |
Orange | Illumination |
White RCA | Left Front Channel |
Gray RCA | Right Front Channel |
Green RCA | Left Rear Channel |
Violet RCA | Right Rear Channel |
(Subwoofer Input Harness)
Wire Color | Function |
---|---|
White RCA | Subwoofer Channel |
(Aux Input Harness)
Wire Color | Function |
---|---|
White RCA | Left Channel |
Red RCA | Right Channel |
Factory Amp Note: This harness includes RCA connections (instead of speaker wire leads) to connect the aftermarket head unit to your vehicle's factory amp. Your aftermarket head unit must be equipped with front, rear, and sub preamp outputs.
Loading...
Loading accessories...
Customer Q&A
2 questions already asked
Loading...
Loading articles...
OMG-so easy! I'll admit I am good at soldering, but I had the old radio out, the harnesses soldered and shrink wrapped and the new unit installed in under 2 hours. Just follow the Crutchfield sheet and it'll be a breeze.
Robert from MT LEBANON, PA