GM Genuine Parts Antennas are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These antennas receive the Over The Air (OTA) radio station signals for your vehicle's radio receiver, and are GM-recommended replacements for your vehicle's original components. Damaged or corroded antennas can impair radio station reception. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).