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About: PAC GM1A-RST Replacement Interface with Chimes, SWC and Factory Amplifier Retention for Select GM Vehicles
RadioPRO Advanced has been engineered to save you time and seamlessly integrate into a vehicle's databus system to retain features such as OnStar, steering wheel controls, factory amplifier, audio fade, rear-seat entertainment system, and warning chimes. RadioPRO Advanced also improves sound quality of warning chimes by playing them through the sound system, or through a provided speaker, while direct USB connection makes product setting adjustments and firmware updates quick and easy. It also saves you time on the installation with a streamlined harness design, smaller housing, and easier adjustment of chimes and factory amplifier gain.
The GM1A-RST 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 Warning Chimes, Bose Amplifier, Steering Wheel Controls (SWC), Rear Seat Entertainment (RSE), and Rear Seat Controls (RSC) when the original radio is removed. The GM1A-RST provides data bus driven outputs such as retained accessory power (RAP), vehicle speed signal (VSS), illumination, reverse trigger and parking brake. You can also add multiple camera inputs to your aftermarket radio with Data-Bus controlled automatic activation (front camera only) by connecting a VS41 into the expansion port on the GM1A-RST.
Specifications:
Vehicle Application:
Buick
Cadillac
Chevrolet
GMC
Hummer
Isuzu
Oldsmobile
Pontiac
Saab
Saturn
Most products include a
limited one year manufacturer’s warranty covering defects in materials and workmanship under normal use.
Warranty coverage does not apply to improper installation, misuse, or damage caused by operation outside
manufacturer specifications.
For complete warranty terms, exclusions, and claim procedures, please visit our full
Warranty Policy page.
Most products include a
limited one year manufacturer’s warranty covering defects in materials and workmanship under normal use.
Warranty coverage does not apply to improper installation, misuse, or damage caused by operation outside
manufacturer specifications.
For complete warranty terms, exclusions, and claim procedures, please visit our full
Warranty Policy page.
Fast shipping across Canada from our Toronto warehouse. Most orders ship within 1–2 business days. Shipping costs and delivery estimates are calculated at checkout. Returns are accepted on eligible items that are unused and in original packaging within our return period. For full details, please view our Shipping Policy and Returns & Exchanges Policy.
Please note that final sale, clearance, open-box, and refurbished items are not eligible for returns or refunds. These items may only be covered under their respective warranty or exchange terms where applicable. For full details regarding open-box items, please review our Open Box Policy.
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On orders over $200*
Competitive pricing you can trust
Most orders ship within 24 hours
With Sezzle and Afterpay