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Radio Replacement Interface for select non-amplified 29-Bit GM LAN v2 vehicles with 20-Pin and 16-Pin harnesses
NOTICE:> Only compatible in vehicles with IO3, IO4, IO5, or IO6 RPO code .> Vehicles that have the IOA or IOB RPO code must use the LCGM52.> RPO codes can be found on a silver sticker either in the glove box or in the trunk near the spare tire well.