GM Sub Amp Integration Harnes
Add a subwoofer. Upgrade your sound and keep your GM factory radio
- Must have Infotainment system RPO code IO5 or IO6 to be compatible.
- To verify the "IO" RPO code on your vehicle, check the glove compartment or spare tire well for a silver sticker with these codes. If this sticker is not present, you must scan the QR code on the GM label found in the driver's door jamb. The RPO codes will be listed in alphabetical order in either scenario.