The GMRC-04 is designed for use in select 2000-2004 GM vehicles without OnStar that use the Dock 'N' Lock style harness. The GMRC-04 provides +12-volt accessory output and retains warning chimes through the use of an on-board speaker.
Product Features
• Provides accessory (12 volt 10 amp)
• Retains R.A.P. (Retained Accessory Power)
• Used in non-amplified systems or when replacing amplified systems
• Retains all warning chimes through an onboard speaker