Specials Outlet
GM Factory Integration Adapter GM Class II Data bus Interface

1984 Tercel with Factory Stereo [remove]

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Problem: Installing an aftermarket receiver in many late model GM vehicles means losing the chime that warns the door is open, along with audible safety warnings.

Solution: Metra's VT-GMRC-01 GM Class II Data Bus Interface lets you replace the factory receiver in these vehicles and keep the door chime and all audible safety warnings.

Hook the VT-GMRC-01 to your aftermarket radio, mount the module in a location where the chime can be heard, and plug it into the existing factory plug. Get the great sound you want, and keep all important safety features intact. The VT-GMRC-01 will not work with OnStar equipped vehicles. 1-year warranty.

Important Note: Because your vehicle is factory-equipped with a special sound system, you will need to purchase this VT-GMRC-01 adapter in order to keep your factory door chime (needed to keep audible safety warnings functioning) while providing a switched 12-volt power source for your new radio. If you do not use a compatible adapter when you replace your factory radio, you will disable the audible warning system in your vehicle. Crutchfield cannot provide a free wiring harness for your vehicle, and we strongly recommend that you use the recommended adapter when replacing this vehicle's factory radio. Failure to do so may result in serious injury or death.

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Learning Center

Car Stereo Installation Video
Car Stereo Installation Video
View a step-by-step overview of a basic car stereo receiver installation.
Car Stereo Installation Guide
Car Stereo Installation Guide
This installation guide walks you through the process of installing a new in-dash receiver in your car.
No Interest If Paid Within 6 Months*

* Valid on qualifying purchases made between 12/29/09 – 3/31/10 when you use your Sony Financial Services credit card account.
On promo purchase balance, monthly payments required, and no finance charges will be assessed if:
(1) promo purchase balance paid in full in 6 months.
(2) all minimum monthly payments on account paid when due, and
(3) account balance does not exceed credit limit.
Otherwise, promo may be terminated & finance charges assessed from purchase date.

On promotions requiring a minimum payment, payments over the minimum will usually be applied to those promo balances before non-promo and other balances. If you have a non-promo balance, this may reduce the benefit from the promo. If you want to change this payment allocation, please call Customer Service. Standard terms apply to non-promo purchases and optional charges. Promo purchases on existing accounts may not receive full benefit of promo terms, including reduced APR if applicable, if account is subject to delinquency pricing. As of 12/01/09 APR 23.99% and on all accounts in default 29.99%. Minimum Finance Charge $2.00. Subject to approval by GE Money Bank.

Offer subject to termination at any time without prior notice.

GM Factory Integration Adapter

GM Class II Data bus Interface

Item #120GMRC01
IN STOCK

What's in the box?

Download owner's manual

  • GM Class II Data Bus Interface (has a white 10-pin female connector on one end and a gray 24-pin male connector on the other end)