Scosche LPTA25: Stereo Replacement & Steering Wheel Control Interface

This LPTA25 allows you to replace your factory OEM stereo while retaining: Factory Steering Wheel Controls, Amplified System, & OEM Accessory.

DESIGNED & ENGINEERED IN U.K CUSTOM MANUFACTURED IN CHINA

Application Guide

For full application go to: WWW.SCOSCHE.COM

Retains:

• Steering Wheel Controls (if equipped)
• JBL, Harman, Mark Levinson & Other Factory Amplified system (if equipped)
• OEM USB Ports & Factory Back-up Camera (if equipped)
• Speed Pulse (VSS)
• Park Brake Trigger
• Reverse Signal

Liability Disclaimer

This LPTA25 instruction manual is based on carefully documented data and research. Scosche Industries Inc. cannot be held responsible for discrepancies/inconsistencies that may occur due to the vehicle manufacturing changes or options, or damages that may occur in the vehicle during the installation of components while using this manual.

If you have any further questions, call our toll-free technical help line at: 1-800-363-4490 x1

© Scosche Industries, Inc 2018

Wiring Color Codes

Navigation Connection

• Pink = VSS Vehicle Speed Pulse Signal
• Lt. Green = Parking Brake Trigger (-12V when park brake is ON)
• Purple/White = Reverse Signal
• Blue/White = Amp Turn On

Note on Accessory Output

? NOTE: The RED accessory output wire from the LPTA25 interface is rated at 10A Max output for most aftermarket head units. Scosche Industries Inc. does NOT recommend connecting additional +12A switched accessories to this output source as that may cause damage to the LPTA25 module itself. If 10A output is not sufficient, then a relay is needed. (Relay not included)

Steering Wheel Wiring Codes

The SWC Wiring Diagram shows a 3.5mm connector with wire loops labeled Violet, Green, and Orange. Connections are provided for KEY 1, KEY 2, and GND, intended for connection to an aftermarket stereo.

1. Prepare SWC steering wheel connector harness by using the chart below.
2. Connect the harness to the interface module.
3. For Alpine, Clarion, JVC, Panasonic and Sony car stereos, connect the 3.5mm male steering plug into the steering wheel input jack at the back of the stereo.
4. For Kenwood and newer JVC stereos, connect the BROWN wire from the steering wheel harness to the "Remote in" wire at the back of the stereo.

Tech Support

?️ TECH SUPPORT: If you have any questions or need technical assistance with the installation, or the most current application please call or visit us on the web at: (800) 363-4490 x1 | www.scosche.com/contact

➡️ Continued on Page 3

SWC Wiring Harness

SWC Harness Sample Cuts

Use the SWC radio samples cuts illustrated as possible outcomes to your installation. Please note that the wire loops are only meant to be cut if necessary for your installation. Do NOT detach the loops from the connector, cut only. If you have any further questions, call or visit us on the web at: 1-800-363-4490 Ext.1 | www.scosche.com/contact

Illustrations show sample SWC harness cuts for Alpine, Kenwood, and Pioneer & Sony stereos. Each diagram depicts wire colors (Orange, Green, Violet) and indicates which loops are intended to be cut for specific installations.

If you have any further questions, call our toll-free technical help line at: 1-800-363-4490 ext. 1

Steering Wheel Controls

Vehicles with 28 Pin Connector

A diagram of steering wheel controls for vehicles with a 28-pin connector is shown, with buttons numbered 1 through 7. These correspond to functions: 1. Volume -, 2. Volume +, 3. Track Down, 4. Track Up, 5. Source, 6. Hang-up, 7. Pick-up. A note indicates that vehicle specifics may vary.

Detach this page for customer use

If you have any further questions, call our toll-free technical help line at: 1-800-363-4490 x1

LPTA25 Wiring Diagram

The LPTA25 Wiring Diagram details connections to an aftermarket radio and the vehicle. It shows the interface module connecting to the vehicle harness. Specific connections to the aftermarket radio include: USB Retention (from aftermarket radio to vehicle), Navigation Connections (Pink for VSS, Lt. Green for Parking Brake Trigger, Purple/White for Reverse Signal, Blue/White for Amp Turn On), Antenna (Blue wire connects to 12V Ignition), RCA Aux In (Red/White), Camera Video Signal Output (Yellow), Key 2, Key 1, 3.5MM, and GND. A table lists stereo brands (Alpine, Clarion, JVC, Kenwood, Panasonic, Pioneer/Sony, Other Brands) with their required configurations and connection types to the stereo.