

Couldn't load pickup availability
The HDBB6CH 6-Channel Backbone Harness from Diamond Audio is the essential upgrade for expanding your Harley-Davidson saddlebag audio system. Designed for riders installing more than one set of speakers per saddlebag, this harness replaces the standard 2-channel harness included with most lid kits and enables clean, reliable power and signal distribution to up to three speakers per saddlebag.
Engineered for true plug-and-play installation, the HDBB6CH connects directly to factory connectors with no re-pinning or cutting of the OEM harness required. This saves installation time while preserving factory integrity and serviceability. High-quality, waterproof connectors ensure long-term reliability in harsh riding conditions, protecting against moisture, vibration, and road debris.
The 6-channel design supports advanced multi-speaker saddlebag configurations, making it ideal for high-output motorcycle audio builds, custom bag installs, and premium Harley-Davidson upgrades. Whether you're increasing volume, improving clarity, or expanding your system, the HDBB6CH provides a clean, professional backbone for your saddlebag speakers.
For riders and installers seeking seamless integration, durability, and scalability, the HDBB6CH Backbone Harness delivers dependable performance and a factory-clean finish.
Tech Support:
Most products ship directly from our vendor warehouses or distributor network. Shipping times can vary depending on the brand, product size, availability, and destination.
Large or oversized items such as lift kits, wheels, tires, bumpers, exhaust systems, and audio enclosures may require additional handling time or freight shipping.
If there is ever an issue with availability, shipping cost, or delivery timing, we will contact you before moving forward with the order.
Returns may be accepted on most new, unused, unopened items within 30 days of delivery. Items must be in original packaging and in resellable condition.
Installed, used, damaged, missing-parts, electrical, special-order, clearance, or custom-built items may not be eligible for return.
Return shipping is normally the customer’s responsibility unless the return is due to our mistake, such as the wrong item being shipped.
Before sending anything back, please contact Kaos Offroad so we can review the order and provide return instructions. Returns sent without approval may be refused.
Some products are vehicle-specific. Please verify fitment before ordering. If you are unsure, contact us with your year, make, model, sub-model, and any relevant details before purchasing.
Original shipping charges, freight charges, and vendor restocking fees may be non-refundable depending on the item and supplier policy.