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The Metra TurboWires 71-2003-1 is a fully terminated, OEM-grade reverse wiring harness designed for select 2000 and newer GM vehicles. Featuring a 24-pin and 12-pin plug combo, it ensures seamless integration with factory radios, making aftermarket upgrades hassle-free. Built with durable copper wiring and backed by expert tech support, this harness is the go-to choice for professional DIYers and enthusiasts seeking reliable, plug-and-play performance.

| ASIN | B0002BEVMK |
| Best Sellers Rank | #218,396 in Automotive ( See Top 100 in Automotive ) #117 in Automotive Performance Ignition & Electrical Systems #947 in Automotive Replacement Electrical Wiring Harnesses |
| Brand Name | Metra |
| Cable Type | automotive wiring harness |
| Connector Type | Plug in |
| Customer Reviews | 3.8 3.8 out of 5 stars (2,091) |
| Global Trade Identification Number | 00086429081646, 00609728851620 |
| Included Components | 24-Pin Wring Harness |
| Item Dimensions | 8 x 4.5 x 2 inches |
| Item Type Name | Metra Gm 1998-2008 Oem Harness (24 Pin) |
| Manufacturer | Metra |
| Material Type | Copper, Plastic |
| Model | 71-2003-1 |
| Part Number | 71-2003-1 |
| UPC | 086429081646 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 year |
R**C
O.E.M.
I was in awe when I received these harnesses. Most of them are stamped on which wire goes where. Need magnifying glass to see them, but most of all, it comes with the wire color, and what it controls. There's 1 on the package and a more detailed 1 inside. The price was under $10, and definitely O.E.M.Grade, not what I expected, being the low price. The color and placement of the wires, are 90% accurate to the shop manual for 1999 to 2003 Silverado 4.8L, 5.3L. Although the Manual is 1999 to 2006 Silverados, Avalanche, Suburban, the wiring diagram colors changed a bit in 2004 to 2006 V8 Models. This 24 pin connector, plugs right in to your Instrument Cluster, making diagnosis of Cluster a breeze when bench testing with an OBD II, mid priced scan, read, and erase trouble codes. For experienced DIY Mechanics. 👍😎✌
A**D
Great product
This was exactly what I needed. I installed an aftermarket radio in my truck about a year prior to installing my new one. The harness for it didn’t work because I was too cheap to buy the controller that let’s you use all the factory goodies like steering controls, on Star and serious xm. So I ended up chopping up my radio harness to try and find the right wires without me realizing that it didn’t matter because all of the wires go to an amp. So when I went to replace the old aftermarket radio with a new one. I had to get a new wiring harness. This thing works amazing. It’s what you want it to be. Nothing more. Nothing less. There are some extra wires but you don’t have to use all of them. Great product and very affordable. Hopefully won’t have to buy again, but if I do I will definitely buy this product.
K**N
Not the right part to connect to vehicle
So this part is male the vehicle is male it doesn't work when returning the item they offered me a 5 dollar credit as an I'm sorry gor the trouble I told them that that was insulting and to keep the 5 never going to order auto parts again as they are always wrong in my experience like every ding dang time I've ordered an auto part it's wrong every time
C**I
Didn't work for me
Not what i thought it was. So it didn't work for my vehicle.
J**G
Excellent product and service.
Excellent product and service. Will buy from them again.
J**N
good
once wired in should fix my problem
D**8
Three Stars
Wiring harness did not fit a 2003 Chevy silverado, even though this was suppose to work.
A**R
Works Perfectly For What I Am Doing...
Works Perfectly For What I Am Doing... I connected speakers and power wires to a set of bookshelf speakers and a 12 volt power supply from indoors in the house and the Automobile Radio Becomes A House Radio/CD Player. Connect antenna wire to Radio From Motorola Plug and it's a great way of playing music, and testing Automobile Radios out. I have a good collection of radios from my Automobiles I have owned and replaced to Aftermarket ones and from Automobile Junk Yards and Ebay has GM Factory Radios for around $25 from Junk Dealers. Great Idea for a collection like mine just buy up old radios and turn them on like they were in the Automobile. Thought about making a stereo rack out of wood like they have at Audio Displays in stores and connect them up to a few speakers. Otherwise they just lay around collecting dust in a storage shed seen tons of radios in junk and antique yards some from 1960's 1970's and 8 Tracks to Cassette ones. LOL :)
J**Y
The right tool for the right job
K**D
absolutely false advertisement this is not a reverse wiring harness it is the factory harness that already belongs in your car
S**E
Parfait
E**E
fast delivery item as described greatly appreciated
A**M
Awesome product. Very happy Metra produces these. It really helped me out and saved me hundreds in the long run. The only reason I did not give this 5 Stars is because there should be a better instruction manual, with better labeling. Labeling should be using terms that are the same as the manufacturers terms, with descriptions of the wires. All 24 pins are wired and I only used about half of them and had a hard time with some because of weird labels, wires being labeled themselves and were just wrong, or the colours not matching on some. Also it came with two harnesses and I am not sure what the small black one is for. After market maybe? Anyways, overall great product. Used in my 2002 Chevy Malibu.
Trustpilot
2 weeks ago
2 months ago