RAD.REPLACE, NON-AMP'D CLASS II GM W/24PN, Pac, Mfr#: LCGM24

This Data Interface Harness for select non amplified Class II GM vehicles allows you to install an aftermarket stereo and retain your factory warning chimes and provides a 10 Minute R.A.P.,Retained Accessory Power, Accessory Output. Interface can be quickly updated from PAC website using PAC UP USB adapter.