Coupon Code ⚠️ Unverified
Expires Aug 23 Eonon create this code for all Publishers in Awin
••••••••
We earn a commission if you shop through this link.
A0590
The A0590 is a 5.5-meter extension harness from Eonon, priced at $59.00, designed specifically for BMW E39 and E46 models. This high-quality wiring adapter enables seamless integration of aftermarket head units, making it ideal for car audio upgrades in older BMWs requiring longer cable reach for clean, factory-style installations.
$59.00
● In stock
Buy at Eonon →Price and availability may change. Click to see current details on Eonon.
★
Key features
- 5.5-meter extended reach
- Designed for BMW E39 E46
- Plug-and-play installation
- Shielded for signal clarity
- Durable PVC insulation
- Color-coded wiring
- Compact, space-saving connectors
✓
Pros
- +Perfect fit for E39 and E46 models
- +No wire cutting or splicing needed
- +Maintains factory signal integrity
!
Cons
- −Only compatible with specific BMW models
- −Limited use outside Eonon systems
ℹ
About A0590
What is A0590?
The A0590 is a 5.5-meter extension harness engineered by Eonon for BMW E39 and E46 vehicles. It acts as a wiring bridge between factory-installed audio systems and aftermarket head units, allowing for extended reach without signal loss or electrical interference. This harness ensures plug-and-play compatibility, preserving original vehicle functionality while supporting modern stereo upgrades. Built with durable materials, it supports reliable connections for power, audio, and data signals across longer distances than standard harnesses.
Key features
- Extended Length — 5.5-meter cable provides ample reach for deep dash installations or trunk-mounted units.
- Built for BMW — Specifically designed for E39 and E46 models, ensuring correct pin configuration and fitment.
- Plug-and-Play — Direct connection to factory wiring and Eonon head units with no splicing required.
- Signal Integrity — Shielded conductors minimize interference for clear audio output.
- Durable Insulation — High-grade PVC coating resists heat, abrasion, and wear over time.
- Compact Connectors — Low-profile plugs fit tight spaces behind BMW dashboards.
- Easy Installation — Color-coded wires and labeled terminals simplify setup for DIY users.
Who is A0590 for?
The A0590 suits BMW E39 and E46 owners upgrading their car audio system, especially those installing head units with non-standard placement. It's ideal for enthusiasts seeking clean, reversible installations without modifying factory wiring. DIYers with basic automotive experience can install it confidently, while professionals may use it for service jobs requiring extended harness runs.
How does A0590 compare?
Compared to generic extension cables, the A0590 offers precise BMW-specific compatibility, reducing error risks during installation. Unlike shorter harnesses, its 5.5-meter length supports flexible head unit placement. It outperforms standard polypropylene-insulated cables with superior heat and wear resistance. While similar to other brand-specific adapters, it maintains Eonon’s quality standard for integration with their head units, offering better reliability than universal splice-in solutions.
🎯
Best use cases
- →Extending head unit wiring in E39 sedans
- →Installing stereos with rear dash placement
- →Upgrading audio in E46 coupes
- →Avoiding factory harness modification
- →Professional car audio retrofits
🛒
Is A0590 right for you?
The A0590 is best for BMW E39 and E46 owners installing aftermarket head units, particularly when extra cable length is needed. Suitable for DIYers with basic wiring knowledge, it requires no advanced tools. If you're using a non-Eonon unit, verify connector compatibility. Alternatives include shorter OEM-length harnesses or universal adapters, but they may require splicing and lack model-specific optimization.
How it compares: Compared to generic extension cables, the A0590 offers exact BMW E39/E46 compatibility and superior build quality. It provides longer reach than standard harnesses and better reliability than splice-in adapters, making it a premium choice for targeted installations.
Are There Active Eonon Coupons for This Product?
% Off ⚠️ Unverified
Expires in 5 days Eonon Australia EOFY Sale | 15%-17% Off All Car Stereos & Head Units
No Code Needed
Get Deal
We earn a commission if you shop through this link.
% Off ⚠️ Unverified
Expires in 6 days Eonon US Exclusive | 20% Off All Android Car Stereos & Radios
No Code Needed
Get Deal
We earn a commission if you shop through this link.
More from Eonon
?
Frequently Asked Questions
What vehicles is the A0590 compatible with?
▾
The A0590 is designed specifically for BMW E39 and E46 models. It ensures correct pin alignment and electrical compatibility with factory audio systems in these vehicles, supporting seamless integration with Eonon head units and select aftermarket stereos using the same harness standard.
Does the A0590 require splicing into factory wires?
▾
No, the A0590 is a plug-and-play harness that connects directly to the factory wiring and head unit without cutting or splicing. This preserves the original wiring and allows for easy removal or restoration if needed, making it ideal for reversible upgrades.
How long is the A0590 extension harness?
▾
The A0590 measures 5.5 meters in length, providing extended reach for head units installed deeper in the dashboard or in custom locations. This makes it suitable for complex installations where standard harnesses fall short.
Is the A0590 only for use with Eonon head units?
▾
While optimized for Eonon head units, the A0590 can work with other brands if they use the same connector type. Always verify your head unit’s harness compatibility before purchase to ensure a proper fit and function.
Can the A0590 cause signal interference?
▾
No, the A0590 uses shielded conductors to prevent electromagnetic interference, ensuring clean audio and data transmission. Its design maintains signal integrity over the full 5.5-meter length, even in electrically noisy vehicle environments.
How much does A0590 cost?
▾
A0590 is $59.00 at Eonon. Prices may change — click through to Eonon for the latest.
Is A0590 in stock at Eonon?
▾
Yes, A0590 is currently in stock at Eonon.
Are there coupon codes for Eonon?
▾
Yes — Love Those Deals currently tracks 3 active Eonon coupons. See the coupons section on this page to copy a code before checkout.
≡
Specifications
- Category
- Car Accessories
- SKU
- 2063
Last updated May 14, 2026