Connector Function Guide

Pin Numbers for

Cable Colour

Functions

ISO Connectors

 

 

External Power

 

 

Connector

 

 

A-4

Yellow

Battery

A-5

Blue/White

Power Control

A-6

Orange/White

Dimmer

A-7

Red

Ignition (ACC)

A-8

Black

Earth (Ground)

 

 

Connection

Speaker

 

 

Connector

 

 

B-1

Purple

Rear Right (+)

B-2

Purple/Black

Rear Right (–)

B-3

Gray

Front Right (+)

B-4

Gray/Black

Front Right (–)

B-5

White

Front Left (+)

B-6

White/Black

Front Left (–)

B-7

Green

Rear Left (+)

B-8

Green/Black

Rear Left (–)

2WARNING

Connecting the ISO Connector

The pin arrangement for the ISO connectors depends on the type of vehicle you drive. Make sure to make the proper connections to prevent damage to the unit.

The default connection for the wiring harness is described in 1 below. If the ISO connector pins are set as described in 2 or 3, make the connection as illustrated.

Please be sure to reconnect the cable as shown 2 below to install this unit to the Volkswagen vehicles etc.

1(Default setting) The A-7 pin (red) of the vehicle’s ISO connector is linked with the ignition, and the A-4 pin (yellow) is connected to the constant power supply.

Ignition cable (Red)

A-7 Pin (Red)

Unit

Vehicle

Battery cable (Yellow)

A-4 Pin (Yellow)

2The A-7 pin (red) of the vehicle’s ISO connector is connected to the constant power supply, and the A-4 pin (yellow) is linked to the ignition.

Ignition cable

A-7 Pin (Red)

(Red)

Unit

Vehicle

Battery cable

A-4 Pin (Yellow)

(Yellow)

 

3The A-4 pin (yellow) of the vehicle’s ISO connector is not connected to anything, while the A-7 pin (red) is connected to the constant power supply (or both the A-7 (red) and A-4 (yellow) pins are connected to the constant power supply).

Ignition cable (Red)

A-7 Pin (Red)

Unit

Vehicle

Battery cable (Yellow)

A-4 Pin (Yellow)

When the connection is made as in 3 above, the unit’s power will not be linked to the ignition key. For that reason, always make sure to turn off the unit’s power when the ignition is turned off.

To link the unit’s power to the ignition, connect the ignition cable (ACC...red) to a power source that can be turned on and off with the ignition key.

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Kenwood KDC-W7031, KDC-W7531, KDC-W8531 Connector Function Guide, Connecting the ISO Connector, Cable Colour Functions

KDC-W8531, KDC-W7031, KDC-W7531 specifications

The Kenwood KDC-W7531, KDC-W7031, and KDC-W8531 are a trio of car audio receivers that exemplify the brand's commitment to innovation, sound quality, and ease of use. These models cater to a diverse range of listening preferences, ensuring a satisfying audio experience for drivers and passengers alike.

The KDC-W7531 stands out with its powerful audio output, seamlessly blending advanced technologies to deliver a superior sound experience. One of its defining features is the built-in CD player, providing easy access to physical media along with compatibility for MP3, WMA, and AAC files. Additionally, it includes a USB port that enables direct connection to iPods and other USB devices, allowing users to enjoy their favorite music collections effortlessly. The high-quality 24-bit digital-to-analog converter enhances audio playback, ensuring pure sound reproduction with reduced distortion.

The KDC-W7031, while slightly more entry-level, does not compromise on essential features. It includes AM/FM radio, a single CD player, and the same USB connectivity options found in the W7531. Both models also boast integrated Bluetooth capabilities, facilitating hands-free calling and wireless music streaming from compatible devices. The inclusion of a three-line display ensures that information such as track titles and artist names is visible and easy to read.

Next in line is the KDC-W8531, which brings additional perks suited for audiophiles. This model supports high-resolution audio playback and features a dedicated subwoofer output, providing users with the ability to elevate their sound system further. The KDC-W8531 also includes a high-pass and low-pass filter, allowing for more tailored audio settings. Its intuitive interface, complemented by customizable color options for its display and buttons, ensures that users can personalize their listening experience.

In terms of connectivity, all three models support various formats, making them versatile choices for music aficionados. Whether users prefer traditional CDs, digital files, or streaming music, these receivers provide multiple avenues for enjoyment. The models also feature a built-in equalizer with preset options, enabling users to adjust the sound profile to match their music preferences or vehicle acoustics.

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