PAC GM1A-RT User Manual

Contents

wiring connections

PAC GM1A-RT User Manual Manual pdf 1 page image

GM1A-RT Radio Replacement Interface withTelematics Retentionfor select General Motors Vehicleswith Class II Data-Bus© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.PAC-audio.comPacific Accessory CorporationRev: V6Date: 092718Page 1Important NotesModule LayoutProgramming ButtonUSB PortInterface Connector 4Adjustment DialInterface Connector 1Expansion PortInterface Connector 2The GM1A-RT interface allows the replacement of a factory radio in select General Motors vehicles with the Class II Data-Bus.Using this interface will retain factory features such as OnStar, warning chimes and the factory Bose amplifier when the originalradio is removed. The GM1A-RT provides data bus driven outputs such as retained accessory power (RAP), vehicle speed signal(VSS), illumination, reverse trigger and parking brake. The GM1A-RT also provides an SWI Direct output for adding an optionalPAC Steering Wheel Control (SWC) retention interface (SWI-RC or SWI-CP2). Rear Seat Controls (RSC) if equipped will alsobe retained with the SWI interface. You can also add multiple camera inputs to your aftermarket radio with Data-Bus controlledautomatic activation (front camera only) by connecting a VS41 into the expansion port on the GM1A-RT.Introduction and Features1. The included chime speaker should be used when: The vehicle has a standard Bose system (UQ7), the vehicle does not havea factory amplifier at all, or if you are connecting an aftermarket amplifier to the cabin speakers.2. The Programming Button and Adjustment Dial on the side of the interface have multiple functions. Please see Page 3 formore details.3. Compatible in both Premium Bose (Y91 / UQA) and Standard Bose systems.4. Real time speaker fading on Premium factory amplified systems (UQA / Y91) is only supported with the “amplified output”connection of the GM1A-RT.5. When using real time speaker fading (Premium Bose only), if the fader setting is biased more to the front or rear, as the radioturns on the sound may begin at the default setting and then quickly transition to your custom setting.6. Aftermarket radio features such as High Pass Filters (crossovers), DSP or “Network Mode” will interfere with proper faderfunction (Premium Bose Only). In order for the GM1A-RT’s fader function to work, the audio from the aftermarket radio’soutput must match so it can compare the front and rear audio levels and determine the proper fader setting for the factoryamplifier.7. When used in conjunction with the add on camera controller (VS41) the GM1A-RT will only provide Data-Bus controlledautomatic activation for the front camera. Please refer to the vehicle specific VS41 instructions for more detail.Interface Connector 3Non-AmplifiedAudio Output LED 1LED 2AmplifiedAudio Output