Enjoy 5% off pre-order products, automatically applied at checkout.

Offer not valid on MTX Audio, Alpine, Focal, Pioneer, Kenwood, Dynavin, JVC and JBL products.

How to understand the displayed delivery times?

For greater transparency, we display the availability of each product in a box at the top of its product page:

• 🟢 In stock: product available in our warehouse, ready to be shipped.
• 🟠 Pre-order – X business days: average time to receive the product in our warehouse before it is shipped to you.

Delivery times are estimates and may vary depending on suppliers and shipping.

We do our best to provide you with clear and reliable information so that you can order with full knowledge of the situation.

Upon receipt of the product, your order is automatically prepared and shipped. You will receive tracking information by email.

Need fast delivery? Choose "In stock" products.

🚚 Free delivery on orders over €49 with Chronopost Économique to a pickup point (estimated delivery time of 4 to 10 business days).

Please note: some heavy or bulky parcels cannot be delivered to a pickup point and may require a contribution towards shipping and handling costs.

These costs are automatically calculated and displayed in your cart before you confirm your order.

Other faster delivery methods are also available depending on the products and your delivery address.

📦 Preparation and shipping

In-stock products ordered before 12 p.m. are generally shipped the same day. After 12 p.m., shipping generally takes place on the next business day.

Pickups are available Monday through Friday, excluding holidays.

🚚 Our delivery methods

• Chronopost Économique pickup point: free delivery with purchases of €49 or more (4 to 10 business days).
• Chronopost 24h pickup point: fast delivery to a pickup point.
• 24h home delivery: our only home delivery option. Please note that this delivery method is not considered a guaranteed express delivery.

Delivery times begin once the carrier has accepted the package and are provided as estimates in business days.

Important: check that your product is listed as "In stock" on its product page. For pre-orders, shipping takes place only after the product has been received at our warehouse.

Some heavy or bulky packages may incur additional shipping and handling fees, which are automatically displayed in your cart.

⚠️ Receiving your package

Check the condition of your package before accepting it. In the event of damage, make specific reservations with the carrier or refuse the package if necessary.

If you experience any problems, please contact our customer service team promptly.

Unsure about choosing a product or its compatibility? Our team is here to help!

📞 Phone: 09 85 13 66 35

💬 Live chat: directly on our website.

🕒 Our hours:

• Tuesday to Saturday
• Mornings: 9:30 am – 12:00 pm
• Afternoons: 1:30 pm – 6:00 pm

Need help choosing your equipment?

Our advisors can guide you and even prepare your cart directly via chat, with products tailored to your needs.

💪 Take advantage of our technical expertise to order with complete confidence!

The Sound Auto Concept Team

Musway M4 DSP v3 Pack + MPK-QSC50-M Quadlock Harness (5.0 m)

This pack combines the Musway M4 DSP v3 amplifier and the MPK-QSC50-M harness, allowing for a 100% Plug & Play installation on vehicles equipped with a Quadlock speaker connector. Thanks to its adapted wiring and 5.0-meter length, this pack facilitates a clean and reversible installation of the amplifier in the trunk or a remote area.

Musway M4 DSP v3 Amplifier

The Musway M4 v3 is a compact amplifier with an integrated DSP, ideal for significantly improving the audio quality of an original system without modifying the vehicle.

• 4 amplification channels
• 6-channel DSP fully configurable via PC
• Advanced filtering: HP / LP / BP
• Parametric equalization
• Time alignment
• High-Level and RCA inputs
• Compact format for OEM installation

MPK-QSC50-M Harness Overview

• Quadlock → Molex 20 PIN adapter
• Length: 5.0 m
• 100% Plug & Play installation
• No cutting or modification of the original harness
• Compatible with Musway M4+ and M6

This harness is ideal for installations where the amplifier needs to be placed in the trunk or away from the head unit.

Vehicle Compatibility

Compatible with vehicles equipped with a Quadlock speaker connector, frequently found on:

• Audi (older models)
• Volkswagen
• Seat
• Skoda
• Ford
• BMW (older generations)
• Various vehicles using OEM Quadlock

Configurations may vary depending on models and years. Please check your harness before purchasing.

Why choose this pack?

• Complete solution: DSP + Plug & Play harness
• No modification of the OEM harness
• Clean, simple, and reversible installation
• Significant sound improvement thanks to the DSP
• 5m length ideal for trunk installation

Pack Contents

• 1 × Musway M4 DSP v3 Amplifier
• 1 × MPK-QSC50-M Harness (5 m)
• Installation and DSP setup support

Mandatory Harness Verification

To avoid any errors, please verify that your vehicle uses a Quadlock speaker harness. Contact us via the site chat if you have any doubts.