MAIN FEATURES
Integrate an aftermarket head unit into select BMW models while retaining factory steering wheel controls and the OEM MOST amplifier system. This Quadlock interface preserves core CAN/MOST functions for a seamless upgrade without coding or fiber bypass, designed for a clean, compliant installation.
Features:
- Retains OEM amp (MOST): Keeps factory fiber-optic amplifier active without bypass modules or rewiring.
- Steering wheel controls: Maps BMW buttons to your aftermarket radio for safe, intuitive operation.
- Quadlock plug-and-play: OEM-style connectors minimize splicing and preserve vehicle integrity.
- Multilead compatibility: Includes FREE patch lead support for various head units.
- CAN integration: Maintains key vehicle signals for stable power, illumination, and system behavior.
- Clean install: Designed for professional fitment with audit-ready authenticity—no alteration of OEM components.
VEHICLE COMPATIBILITY LIST
- BMW 1 Series: E81/E82/E87/E88 with Quadlock & OEM MOST amp
- BMW 3 Series: E90/E91/E92/E93 with Quadlock & OEM MOST amp
- BMW 5 Series: E60/E61 with Quadlock & OEM MOST amp
- BMW X5: E70 with Quadlock & OEM MOST amp
- BMW X6: E71 with Quadlock & OEM MOST amp
Note: Compatibility depends on factory audio architecture (Base vs. OEM MOST systems). Confirm Quadlock and presence of fiber-optic amp before purchase.
Retained functions
- OEM amplifier audio via MOST
- Steering controls: volume, track, source (varies by radio)
- Vehicle CAN signals: ignition and illumination
Included in the kit
- Main harness: BMW Quadlock to aftermarket ISO/RCA (as applicable)
- CAN/MOST interface: control box with fiber integration
- Patch lead: Multilead for steering wheel control (brand-specific)
- Fitting guide: basic connection instructions
Installation notes
- Verify architecture: check for OEM fiber-optic amp; base systems may require different harnesses.
- iDrive/PDC/SOS: audio prompts vary by model; retain where supported by the interface and vehicle.
- No coding required: typically plug-and-play; always test all functions before reassembly.
- Professional fitment recommended: maintains compliance and preserves OEM wiring integrity.
Disclaimers
- Model variance: features may differ by year/trim; confirm exact spec before ordering.
- Radio features: final button mapping depends on aftermarket head unit capabilities.
- Authenticity: use as-supplied components only; do not modify cables or images.
UK Deliveries: Free UK mainland delivery applies to orders over £30 (exceptions apply to remote regions and islands, which will see a surcharge at checkout).
Orders Under 2kg: Most in-stock items arrive in 2–3 working days. Items held by suppliers take 4–6 working days. (Note: Saturday is not a working day).
Orders Over 2kg: Dispatched via trusted couriers including AMAZON Shipping, Royal Mail, DPD, and UPS.
Royal Mail Specifics: Royal Mail aims to deliver in 1–3 working days, though this is not guaranteed. If your item has not arrived after 7 days, please contact us. We can only replace missing items after 14 days have passed.
More information (including international delivery on our Delivery Information page.
MAIN FEATURES
Integrate an aftermarket head unit into select BMW models while retaining factory steering wheel controls and the OEM MOST amplifier system. This Quadlock interface preserves core CAN/MOST functions for a seamless upgrade without coding or fiber bypass, designed for a clean, compliant installation.
Features:
- Retains OEM amp (MOST): Keeps factory fiber-optic amplifier active without bypass modules or rewiring.
- Steering wheel controls: Maps BMW buttons to your aftermarket radio for safe, intuitive operation.
- Quadlock plug-and-play: OEM-style connectors minimize splicing and preserve vehicle integrity.
- Multilead compatibility: Includes FREE patch lead support for various head units.
- CAN integration: Maintains key vehicle signals for stable power, illumination, and system behavior.
- Clean install: Designed for professional fitment with audit-ready authenticity—no alteration of OEM components.
VEHICLE COMPATIBILITY LIST
- BMW 1 Series: E81/E82/E87/E88 with Quadlock & OEM MOST amp
- BMW 3 Series: E90/E91/E92/E93 with Quadlock & OEM MOST amp
- BMW 5 Series: E60/E61 with Quadlock & OEM MOST amp
- BMW X5: E70 with Quadlock & OEM MOST amp
- BMW X6: E71 with Quadlock & OEM MOST amp
Note: Compatibility depends on factory audio architecture (Base vs. OEM MOST systems). Confirm Quadlock and presence of fiber-optic amp before purchase.
Retained functions
- OEM amplifier audio via MOST
- Steering controls: volume, track, source (varies by radio)
- Vehicle CAN signals: ignition and illumination
Included in the kit
- Main harness: BMW Quadlock to aftermarket ISO/RCA (as applicable)
- CAN/MOST interface: control box with fiber integration
- Patch lead: Multilead for steering wheel control (brand-specific)
- Fitting guide: basic connection instructions
Installation notes
- Verify architecture: check for OEM fiber-optic amp; base systems may require different harnesses.
- iDrive/PDC/SOS: audio prompts vary by model; retain where supported by the interface and vehicle.
- No coding required: typically plug-and-play; always test all functions before reassembly.
- Professional fitment recommended: maintains compliance and preserves OEM wiring integrity.
Disclaimers
- Model variance: features may differ by year/trim; confirm exact spec before ordering.
- Radio features: final button mapping depends on aftermarket head unit capabilities.
- Authenticity: use as-supplied components only; do not modify cables or images.
MAIN FEATURES
Integrate an aftermarket head unit into select BMW models while retaining factory steering wheel controls and the OEM MOST amplifier system. This Quadlock interface preserves core CAN/MOST functions for a seamless upgrade without coding or fiber bypass, designed for a clean, compliant installation.
Features:
- Retains OEM amp (MOST): Keeps factory fiber-optic amplifier active without bypass modules or rewiring.
- Steering wheel controls: Maps BMW buttons to your aftermarket radio for safe, intuitive operation.
- Quadlock plug-and-play: OEM-style connectors minimize splicing and preserve vehicle integrity.
- Multilead compatibility: Includes FREE patch lead support for various head units.
- CAN integration: Maintains key vehicle signals for stable power, illumination, and system behavior.
- Clean install: Designed for professional fitment with audit-ready authenticity—no alteration of OEM components.
VEHICLE COMPATIBILITY LIST
- BMW 1 Series: E81/E82/E87/E88 with Quadlock & OEM MOST amp
- BMW 3 Series: E90/E91/E92/E93 with Quadlock & OEM MOST amp
- BMW 5 Series: E60/E61 with Quadlock & OEM MOST amp
- BMW X5: E70 with Quadlock & OEM MOST amp
- BMW X6: E71 with Quadlock & OEM MOST amp
Note: Compatibility depends on factory audio architecture (Base vs. OEM MOST systems). Confirm Quadlock and presence of fiber-optic amp before purchase.
Retained functions
- OEM amplifier audio via MOST
- Steering controls: volume, track, source (varies by radio)
- Vehicle CAN signals: ignition and illumination
Included in the kit
- Main harness: BMW Quadlock to aftermarket ISO/RCA (as applicable)
- CAN/MOST interface: control box with fiber integration
- Patch lead: Multilead for steering wheel control (brand-specific)
- Fitting guide: basic connection instructions
Installation notes
- Verify architecture: check for OEM fiber-optic amp; base systems may require different harnesses.
- iDrive/PDC/SOS: audio prompts vary by model; retain where supported by the interface and vehicle.
- No coding required: typically plug-and-play; always test all functions before reassembly.
- Professional fitment recommended: maintains compliance and preserves OEM wiring integrity.
Disclaimers
- Model variance: features may differ by year/trim; confirm exact spec before ordering.
- Radio features: final button mapping depends on aftermarket head unit capabilities.
- Authenticity: use as-supplied components only; do not modify cables or images.
UK Deliveries: Free UK mainland delivery applies to orders over £30 (exceptions apply to remote regions and islands, which will see a surcharge at checkout).
Orders Under 2kg: Most in-stock items arrive in 2–3 working days. Items held by suppliers take 4–6 working days. (Note: Saturday is not a working day).
Orders Over 2kg: Dispatched via trusted couriers including AMAZON Shipping, Royal Mail, DPD, and UPS.
Royal Mail Specifics: Royal Mail aims to deliver in 1–3 working days, though this is not guaranteed. If your item has not arrived after 7 days, please contact us. We can only replace missing items after 14 days have passed.
More information (including international delivery on our Delivery Information page.
