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Small black rectangular interface module with wire harness

PAC

PAC GM1A-RST RadioPRO Advanced Interface marine electronic

SKU CH-YWMY-B6GPD

Retains OnStar, steering-wheel controls, Bose amplifier, fade, rear-seat entertainment and warning chimes in select 2006-2014 GM vehicles with USB-updatable firmware

  • Product typeAccessories
  • Retains OnStar and steering-wheel controls for GM vehicles 2006-2014
  • Plays warning chimes through the audio system or supplied speaker
  • Keeps Bose Standard and Premium amplifiers with adjustable gain and EQ
  • Preserves rear-seat entertainment and real-time audio fade
  • USB connection enables quick firmware updates and setting changes

Vehicle Integration Interface

The PAC GM1A-RST RadioPRO Advanced Interface connects an aftermarket radio to the data bus of compatible General Motors vehicles from 2006 to 2014. It retains OnStar, steering wheel controls, factory amplifier settings, audio fade, rear-seat entertainment and warning chimes during a head-unit upgrade.

Streamlined Installation Design

A smaller housing and simplified harness reduce fitting time behind the dashboard. Warning chimes play through the vehicle sound system or the supplied external speaker. USB connectivity allows quick firmware updates and on-site adjustment of chime volume or amplifier gain without removing the unit.

Retained Factory Features

The interface preserves Bose Standard and Premium amplifier operation with adjustable gain, bass, mid and treble settings. Real-time audio fade and rear-seat entertainment system functionality remain active. Buyers whose vehicles fall outside the listed Buick and Cadillac model years cannot use this interface.

How it compares

Measured against everything we stock in Boat Audio & Electronics, at today’s prices. Recalculated every night.

Price $231.99
Pricier than about 85% of the 312 comparable items (median $69.49).

Specifications

Product
Product typeAccessories

Questions about this item

How do I wire the GM1A-RST into a 2008-2014 Buick Enclave and which step is often missed?

Connect the streamlined harness to the vehicle databus, then use the USB link to configure OnStar, steering wheel controls, Bose amplifier gain and chime routing before finalising the install; the step most often missed is running the USB setup after the physical wiring is complete.

What part of the GM1A-RST will need attention or replacement as the vehicle ages?

The unit itself has no user-serviceable parts; future attention is limited to firmware updates via USB if General Motors revises databus protocols for 2006-2014 models.

What limit appears first when the GM1A-RST runs continuously on long trips?

The interface is designed for constant vehicle operation; no thermal or duty-cycle limit is specified, so the first practical limit is the vehicle’s own electrical system capacity.

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