ADS-RR(SR)-GM03-DS - Install Guide - iDatalink Maestro RR (or RR2) for Chevrolet Colorado 2015-2018

Oct 25, 2026

Upload by Aran

iDatalink Maestro RR (or RR2) installation guide for Chevrolet Colorado model years 2015–2018. Provides prerequisites, including firmware verification, confirmation of Bose amplifier presence, and required products such as the RR radio replacement interface and GM3 installation harness. Details step-by-step wiring connections for aftermarket radio, GM3 T-harness, backup camera and steering wheel controls, plus OBDII and audio/data cable hookups. Includes wiring diagrams and troubleshooting references to support correct radio integration and harness matching.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages89

Reading Time3 h 44 min

AccessFree to download

Installation Instructions

Before Installing

Step 1 - Step 8

Wiring Diagram without an Ampliﬁer

Wiring Diagram with an Ampliﬁer

Radio Wire Reference Chart

Vehicle Wire Reference Chart

Troubleshooting Table

SELECT VEHICLE PRINT PAGES NEEDED | HOW TO USE THIS INSTALL GUIDE
1 Open the Bookmarks menu and find your vehicle OR scroll down until you find the install guide for your vehicle.
2 Print only the pages for your vehicle using the advanced options in the Print menu.
3 Install your Maestro RR according to the guide for your vehicle.

| | --- | | WARNING
Pressing the printer icon or “quick printing” this document will print all of the guides in this compilation. | NOTICE: Automotive Data Solutions Inc. (ADS) recommends having this installation performed by a certiﬁed technician. Logos and trademarks used here in are the properties of their respective owners. INSTALL GUIDE 2015-2018 Chevrolet Colorado RETAINS STEERING WHEEL CONTROLS, ONSTAR, AND MORE! OR PRODUCTS REQUIRED iDatalink Maestro RR or RR2 Radio Replacement Interface iDatalink Maestro GM3 Installation Harness PROGRAMMED FIRMWARE ADS-RR(SR)-GM03-DS ADDITIONAL RESOURCES Maestro RR2 Programmable Outputs Guide OPTIONAL ACCESSORIES E L E C T R O N I C S Click here for: Radar Installation Guides NOTICE: Automotive Data Solutions Inc. (ADS) recommends having this installation performed by a certified technician. Logos and trademarks used herein are the properties of their respective owners. | WELCOME
Congratulations on the purchase of your iDatalink Maestro RR Radio replacement solution. You are now a few simple steps away from enjoying your new car radio with enhanced features.
Before starting your installation, please ensure that your iDatalink Maestro module is programmed with the correct ﬁrmware for your vehicle and that you carefully review the install guide.
Please note that Maestro RR will only retain functionalities that were originally available in the vehicle.
NEED HELP?
1 866 427-2999 | | | --- | --- | | [maestro.support@idatalink.com](maestro.support@idatalink.com) | | | | [maestro.idatalink.com/support](maestro.idatalink.com/support)[ ](maestro.idatalink.com/support)[www.12voltdata.com/forum](www.12voltdata.com/forum) | | TABLE OF CONTENTS | | | --- | --- | | Installation Instructions | 3 | | Wiring Diagram without an Ampliﬁer | 4 | | Wiring Diagram with an Ampliﬁer | 5 | | Radio Wire Reference Chart | 6 | | Vehicle Wire Reference Chart | 7 | Troubleshooting Table 8 Automotive Data Solutions Inc. © 2021 ADS-RR(SR) -GMS03-DS-IG-EN [maestro.idatalink.com ](maestro.idatalink.com 2)[ 2](maestro.idatalink.com 2) | | Chevrolet Colorado 2015-2018 | | --- | --- | INSTALLATION INSTRUCTIONS BEFORE INSTALLING • Determine if the vehicle has a Bose ampliﬁer. Look for badges on the radio, door panels, and dash that indicate that the vehicle has Bose. If the vehicle DOES NOT have a factory ampliﬁer: complete the installation as shown in the wiring diagram without an ampliﬁer. If the vehicle DOES have a factory ampliﬁer: complete the installation as shown in the wiring diagram with an ampliﬁer. The ampliﬁer cannot be retained; it must be bypassed or replaced with an aftermarket ampliﬁer. See the vehicle reference chart for wire colors; bypass instructions are not included. • Remove the factory radio. STEP 1 • Unbox the aftermarket radio and locate its main harness. • Refer to the wiring diagram and connect the wires from aftermarket radio main harness to the GM3 T-harness and match the wire functions. STEP 2 • If the vehicle is equipped with an OEM backup camera, connect the backup camera harness to the Human Machine Interface module harness, located at the bottom of the radio cavity. Note: The guide lines of the backup camera will not be retained. Note: if the vehicle does not have the Human Machine Interface module plug the Red connector of the Backup Camera RCA into the red connector coming out the Gray 20 pin of the GM3 harness. STEP 3 • Connect the factory harness to the GM3 T-harness. STEP 4 Plug the climate control portion of the GM3 T-harness into t

FAQs

What should be checked before starting the installation?

Verify the iDatalink Maestro module is programmed with the correct firmware for the vehicle and review the install guide. Also confirm whether the vehicle has a factory Bose amplifier.

How do I handle vehicles with a factory amplifier?

If the vehicle has a factory amplifier, install using the wiring diagram with an amplifier. The amplifier cannot be retained and must be bypassed or replaced with an aftermarket amplifier; bypass instructions are not included.

How should the backup camera be connected when equipped?

Connect the backup camera harness to the Human Machine Interface module harness at the bottom of the radio cavity. If the vehicle does not have the Human Machine Interface plug, connect the Red connector of the Backup Camera RCA to the red connector coming out of the Gray 20 pin of the GM3 harness.

Oct 25, 2026

Upload by Aran