User Manual

NU-GM51
Navigation Unlock Interface for GM Vehicles
equipped with the MyLink/CUE Audio System
Pacic Accessory Corporation
®
| Ph. 866-931-8021 | [e-mail]
©2015 Pacic Accessory Corporation
www.pac-audio.com
Rev. 051215
Page 1
Pacific Accessory Corporation
***Check the chart below for the location of the radio brain in your vehicle.***
Disconnect the Grey 20-pin harness from the vehicles radio brain. Connect the male 20-Pin connector of the NU-GM51 harness into the
20-pin port on the vehicles radio brain. Connect the factory 20-Pin harness into the female connector on the NU-GM51 harness. Connect the
black 24-pin micro-t connector of the NU-GM51 harness into the NU-GM51.
The NU-GM51 is a Navigation Unlock interface that allows the factory navigation and Bluetooth
features of your 8” MyLink/CUE Radio to be used by the passenger at anytime.
NU-GM51
GM LAN MyLink & Cue
Navigation Unlock Interface
To Vehicle
Accessory Output
250mA max.
To Factory Radio
NU-GM51-HAR
Connection Diagram
Introduction & Features
Installation
Important Notes
Year Make Model RadioBrainlocation
2015 Chevrolet Colorado Behindthetouchpaneldisplayfortheradio.
2015 Chevrolet Corvette Underpassengersidedash,behindcarpet,towardsfirewall.AttachedtoplasticBCMbracket.
2015 Chevrolet Impala Underpassengersidedash,behindthegloveboxbehindplasticunderdashpanel.
2015 Chevrolet Silverado Behindthetouchpaneldisplayfortheradio.
2015 Chevrolet Suburban BehindA/Ccontrolsindash
2015 Chevrolet Tahoe BehindA/Ccontrolsindash
2015 GMC Canyon Behindthetouchpaneldisplayfortheradio.
2015 GMC Sierra Behindthetouchpaneldisplayfortheradio.
2015 Cadillac ATS Underpassengersidedash,behindthegloveboxbehindplasticunderdashpanel.
2015 Cadillac CTS Underpassengersidedash,behindthegloveboxbehindplasticunderdashpanel.
2015 Cadillac XTS Underpassengersidedash,behindthegloveboxbehindplasticunderdashpanel.
2015 Cadillac SRX Underpassengersidedash,behindthegloveboxbehindplasticunderdashpanel.
2015 Cadillac Escalade Behindthetouchpaneldisplayfortheradio.
1. Vehicle must be in the OFF position when disconnecting the radio brain and installing the NU-GM51 harness/module.
2. When installing the NU-GM51 into the ATS or the CTS Sedan it will require you do disconnect the HVAC module. This is a
small black module with 4 connectors found in the passenger kick panel. Please be sure the vehicle is off when disconnecting
this module and make sure that when reconnecting, the Brown connector is connected LAST. Failure to connect the Brown
connector last will trigger a DTC and put the A/C into limp mode. A trip to the dealership to have it reset will be needed in the
event these instructions are not followed.
3. The NU-GM51 Activation menu will not be displayed when the OnStar is being used.
Module Overview
Radio Brain Overview
Below is what the radio brain looks like. It will house
the AM/FM and Satellite antennas for reference.