What would cause static in the radio in a 2003 Cadillac CTS?

Static in the radio of a 2003 Cadillac CTS can be caused by several factors, including poor reception due to weak signal strength or interference from nearby electronic devices. Additionally, issues with the antenna, such as damage or corrosion, can lead to signal loss. Faulty wiring or grounding issues within the radio or vehicle's electrical system may also contribute to static. Lastly, a malfunctioning radio unit itself could be the source of the problem.