Metra 70-9400 Receiver Wiring Harness
1996 Land Rover Discovery
Crutchfield Customer Review (What's this?)
good product. needs longer wires to mount sl4 outside the box
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Item # 120709400 | MFR # 70-9400
$16.99 Earn up to 17 Rewards points
Installation Note: This harness uses your factory amplifier; your new stereo must have two pairs of preamp outputs to connect this harness.
This vehicle-specific wiring harness makes connections between your new car stereo and your car's electrical system.
First, attach the color-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.
Note: Most vehicles will require additional installation parts please identify your vehicle if you haven’t done so. You can also call an Advisor for more information.
Average Customer Review(s):
good product. needs longer wires to mount sl4 outside the box
This is adequate for what was needed to install a BOSS head unit in my 1997 Land Rover Discovery. The wiring harness worked fine it was my first time installing any type of stereo in any of my vehicles. I ran the pre-amp RCA's because these cars have a factory amp installed for the speakers in the doors and rear/front pillars and also another in the cargo door. For that reason be sure to connect the blue wire to power the amp. Be aware that regardless to what head unit you use get a filter or you will have a lot of motor interference through your speakers.
The best item for a radio install! Fit my 1993 Range Rover perfectly! Didn't have to cut any factory wires, and maintained full functionality of the factory controls!
Can't give it zero stars but I would if I could. Wired wrong for the system. If you have 91-4 Classic it won't fit. Each channel needs its own black ground wire. This has one ground but it doesn't go to anything on the harness.
Cons:Crutchfield response on 8/24/2016 This customer contacted one of our Customer Support team members, Megan, and was issued a refund.
The harness works great no issues. With a 97 Land Rover discovery 1. You don't need the radio attachment as there is no place for that in this model truck.
Pros: It works
Cons: More instructions on which connection from the D1 is applicable. (There is an identical connection that controls the extra receiver buttons beside steering wheel)
I used this to replace the OEM head unit in my 98 Land Rover Discovery. Plug and play was simple enough, but it took a few calls to Crutchfield (wow, they're good!) to get a few dead end wires buttoned up. I'm still dealing with a mildly annoying alternator whine, but have confidence that with the help of Crutchfield support I'll get it figured out sooner or later. If there was a higher end product for a bit more I would have shelled out for it, and I MAY have had fewer issues with the install.
Cons: Installation (on my vehicle at least) took a few tweaks to the harness.
Very easy to hook up. Took me 10 minutes. Great price also
Great product. Works excellent
Pros: Works great
Cons: Nothing bad
Worked perfectly to upgrade the receiver in my 1996 Land Rover Discovery. Very easy to install. Excellent instructions.
Simple answer to install.
Pros: Good fit
Cons: Not scosches fault, but the vehicle is a bugger to fit all the wire and connector in behind the deck. If your really gonna consider reinstalling factory deck it's perfect. If your not, hardwire and save the headaches of fitting the bundle behind deck.
Generally easy to install - however, the harness is incorrectly wired and the provided speaker grounds cause buzzing. I had to call Crutchfield support (they were great by the way) to correct the problem - which involved rewiring the harness to connect an additional lead from the ground.
Pros: All the wires are there, instructions
Cons: Bulky harnesses, incorrect wiring, didn't fit in my dash with the stereo and original harness.
No issues here, soldered up the wires to the harness on the new Alpine deck, had to cut off the RCA plugs and solder the speaker wires together, but that was easy. Plugged it in, everything works! 04 Land Rover Discovery
This Harness came with a single common ground wire for all channels, and that wire was lined up opposite an empty slot on the factory side. I moved the ground to match the factory ground, but the Kenwood receiver wouldn't accept a common ground. Ended up wiring to RCA plugs and using the front and rear RCA outputs connected to the harness with the adjusted ground, then plugging into the factory harness.... but had to use ground loop isolators on both outputs. Sounds great now.
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.
Note: Installation tools, hardware, & accessories are not included & sold separately. Please see the Accessories tab for recommendations & availability.
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 adapter is required & sold separately.
Wire Code Chart:
|Red||+12 Volt Accessory|
|Yellow||+12 Volt Constant|
(Speaker Preamp Harness)
|White||Left Front Speaker +|
|Gray||Right Front Speaker +|
|Green||Left Rear Speaker +|
|Violet||Right Rear Speaker +|
Installation Note: The aftermarket receiver must have front and rear preamp outputs; if not, you will need to add a line out converter (142SLC4, sold separately).
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.
I have been very satisfied with Crutchfield and the service they provide.[ CHAD Jun 13, 2017 ]
this will plug in to old auto plugs in my car per crutchfield[ yoke Jun 04, 2017 ]
Needed it[ Jeffrey Jun 22, 2016 ]