# Fusion Wire Harness f/ MS-RA670  MS-RA770 Stereo - Zone 1  2 (B Port-RCA) [010-12812-01]

**Wire Harness - Zone 1 & 2 (B Port-RCA)**

Use this wiring loom to connect your compatible Fusion® marine stereo to a Fusion marine amplifier, enabling the Zone 1 and 2 speaker or subwoofer zones. There are also RCA inputs for enabling the AUX 1 source.

**Compatible with** 

-   MS-RA670
-   MS-RA770
-   MS-WB670
-   MS-WB675
-   MS-BB100
-   MS-RA210
-   MS-RA70

![Warning](https://productimageserver.com/prop65/6pt.png)**WARNING:** This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to [P65Warnings.ca.gov](http://P65Warnings.ca.gov).

## Details

- **Price:** 19.99 USD
- **Type:** Accessories
- **Tags:** 1st Class Eligible, Brand_Fusion, Entertainment, Entertainment | Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 19.99 USD | In stock |

## Images

- Fusion Wire Harness f/ MS-RA670  MS-RA770 Stereo - Zone 1  2 (B Port-RCA) [010-12812-01] Fusion

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> Source: [Besafe1st](https://besafe1st.com/products/fusion-wire-harness-f-ms-ra670-ms-ra770-stereo-zone-1-2-b-port-rca-010-12812-01)
> Updated: 2026-06-27