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🔧 Upgrade your Mazda’s sound system in minutes—no cutting, just connecting!
The Metra Electronics 70-7903 Wiring Harness is a precision-engineered adapter designed for Mazda vehicles from 2001 onward. It features a 24-pin proprietary connector that plugs directly into the factory radio harness, eliminating the need for wire cutting. Color-coded wires simplify aftermarket radio installation, supporting a 4-speaker setup with durable copper and PVC materials. Lightweight and easy to install, it’s the go-to solution for fast, clean audio upgrades.
| ASIN | B0002BEVXY |
| Best Sellers Rank | #41,334 in Automotive ( See Top 100 in Automotive ) #93 in Automotive Replacement Electrical Wiring Harnesses |
| Brand | Metra |
| Brand Name | Metra |
| Cable Type | proprietary |
| Connector Type | 24-pin |
| Customer Reviews | 4.6 out of 5 stars 1,759 Reviews |
| Global Trade Identification Number | 00086429084739 |
| Included Components | 2000 & Up Mazda Power/4-Speaker Connector |
| Item Dimensions | 7.5 x 4.5 x 1 inches |
| Item Type Name | Mazda Cx-7 2007 Turbo Wire Harness |
| Item Weight | 1.44 ounces |
| Item dimensions L x W x H | 7.5 x 4.5 x 1 inches |
| Manufacturer | Metra Electronics Corp |
| Material | Copper, Polyvinyl Chloride (PVC) |
| Material Type | Copper, Polyvinyl Chloride (PVC) |
| Model | 70-7903 |
| Part Number | 70-7903 |
| Recommended Uses For Product | Car |
| UPC | 086429084739 |
| Unit Count | 1.0 Count |
| Warranty Description | 30 days |
B**E
Works well
Worked just fine, all connections are clearly labeled and wires are pre stripped. Super easy to use and install.
M**N
Wiring adapter
Excellent product just what I needed to install radio in son's car . No wires had to be cut .
R**N
good price
works good
D**L
Great harness, quality and performance.
I've made up my own harnesses a long time ago. I was very suprised at the high quality of this harness, especially considering the low price. Thick stranded copper wires that took solder well, thick, tough, durable insulation that doesn't nick or melt. The orange headpiece was very tough and handled change-outs well and always stayed tight. The pins were heavily tinned for a good contact and prevent bad connections from corrosion. In my car, the two amp wires (blu & blu/wht) on the harness aren't used so I repurposed them, moving them the locations to let me tie in the steering wheel controls. It wasn't easy because of how well built this harness is. You can't go wrong with this part.
C**Z
Perfect fit
It fit my 07 mazdaspeed 3 harness perfectly, the wires were easy to manage and it came with a color code manual, which i thought i was gonna have to figure out on my own. So that was awesome. Worked first try
M**A
Great fit and quality
Great fit and quality
D**N
Made it easy.
Nothing complicated here... just a harness that allows you to splice like-colored wires (red to red, violet to violet...) from this harness, to the harness provided by your aftermarket stereo's harness... then just plug this harness into the Mazda's harness... and the stereo works - is wired correctly to each speaker. Mazda's wires (and all auto wires) do not subscribe to the standard stereo color scheme. It made the job dummy-proof and this harness worked fine in my 2007 Mazda5. Note: the factory stereo is integrated with the steering wheel controls and the green LCD display at the top of the dash; this harness does not integrate with either; you need other stuff to keep the steering wheel controls working and I don't know how you'd make an aftermarket radio work with the LCD display.
T**N
Good
Worked great on 03 mazda tribute
A**N
Quality product
Bought it for my 2010 Mazda 3 and was a very straight forward install, plugged smoothly into the OE connector, has all the wires you would need to connect to any aftermarket headunit. Be advised you would need a separate controller/adapter for steering wheel audio controls. Cruise control still works as that is a separate system altogether.
J**O
Cumple su funcion
Funciona muy bien, me funcionó bien en mi mazda 6 2014
E**.
C’est bien
Ça fonctionne très bien
V**R
Encaja bien en mazda 3 , 2010
Muy buen producto, y cumple con todas sus funciones
L**Z
I like it
Muy buen producto, facilita el trabajo súper bien
Trustpilot
2 weeks ago
3 weeks ago