Stealth Audio Upgrade by Source Sounds
This BMW 3 Series E46 M3 CSL was treated to a discreet, performance-focused audio upgrade by Source Sounds, carefully engineered to preserve the car’s lightweight ethos and factory appearance.
All equipment was neatly integrated into the spare wheel well, allowing the boot space to remain fully usable and visually OEM. The amplifier and supporting hardware were securely mounted beneath a custom-fabricated floor panel, ensuring a clean finish with no exposed wiring. This stealth installation enhances overall sound quality and power delivery while maintaining the integrity and character of this iconic M3 CSL.
