Stage 7 - BMW FULL Audio Upgrade Sound System

Stage 7 - BMW FULL Audio Upgrade Sound SystemBMW Stage 7 Full Audio Upgrade Sound System This Stage 7 BMW audio upgrade is a complete plug and play sound system package for customers who want a full system improvement rather than changing one part at a time. It combines front speakers, rear speakers, underseat woofers, a Musway DSP amplifier and vehicle specific plug and play wiring. The aim of this kit is to give your BMW a stronger, cleaner and more detailed sound while keeping the

BMW Stage 7 Full Audio Upgrade Sound System

This Stage 7 BMW audio upgrade is a complete plug-and-play sound system package for customers who want a full system improvement rather than changing one part at a time. It combines front speakers, rear speakers, underseat woofers, a Musway DSP amplifier and vehicle-specific plug-and-play wiring.

The aim of this kit is to give your BMW a stronger, cleaner and more detailed sound while keeping the installation reversible and avoiding cut factory wiring.

Not sure which version your BMW needs? Send us your VIN or registration before ordering and we can help check the correct option for your car.

What is included?

• Musway CSB4.2C component speakers for the front speaker locations
• Musway CSB4.2X coaxial speakers for the rear speaker locations
• Musway CSB8W underseat woofers for the front underseat bass locations
• Musway M6v3 6-channel DSP amplifier
• Plug-and-play wiring matched to the selected BMW audio system option

Choose the correct version

This product has different options depending on the factory audio system and vehicle generation:

• Base Model PRE 2019
• HiFi 676 PRE 2019
• RAM 2019+

If your BMW has the base audio system, BMW tweeter panels may be required separately. Contact us before ordering if you are unsure which factory system your car has.

Why upgrade with this kit?

• Full BMW system upgrade in one package
• Vehicle-specific plug-and-play design
• No need to cut the factory wiring when fitted correctly
• Includes a DSP amplifier for better tuning, control and power
• Designed to improve clarity, bass, staging and overall volume compared with the original system
• Can be returned closer to standard if the vehicle is sold or changed

Installation and setup

This kit is designed for BMW owners who want a high-quality upgrade without custom fabrication. A confident DIY installer can fit this type of system, or it can be installed by a professional car audio installer.

For best results, the DSP amplifier should be set up correctly for the vehicle and speaker layout. Contact Tender Sounds if you need help choosing the correct option or want advice before fitting.

Vehicle compatibility

This kit is intended for selected BMW and MINI vehicles using compatible BMW-style speaker and underseat woofer locations. Compatibility depends on the exact model, year and factory audio system.

Common BMW platforms include selected 1 Series, 3 Series, 5 Series, 6 Series, 7 Series, X1, X3, X5, X6, Z4 and M models. Because BMW audio systems vary, please send your VIN or registration if you are unsure.

Before ordering

• Check whether your car is Base Audio, HiFi 676 or RAM 2019+
• Send us your VIN or registration if you are unsure
• Confirm whether your vehicle already has tweeter locations fitted
• Ask us before ordering if the vehicle is leased, financed or must remain fully reversible