Dock 'N' Lock External ChimeProvides accessory (12 volt 10 amp)Retains R.A.P. (Retained Accessory Power)Used in non-amplified systems or when replacing amplified systemsRetains all warning chimes through an onboard speakerHigh level speaker inputRetains balance and fade
- GM Dock-n Lock 2000-2004
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.