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Home >> GMC >> 1989 >> Forward Control 7.4 W, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Standard & Electronic >> Removal & Installation >> Digital Ratio Adapter/Controller >> Removal & Installation (Astro & Safari)

Removal & Installation (Astro & Safari)

Disconnect negative battery cable. Unplug instrument panel harness from connector. On Astro and Safari, remove digital ratio adapter controller and bracket from behind radio. Separate bracket from DRAC. On "S" series, remove DRAC from bracket below glove box. To install, reverse removal procedure.