Overview

Upgrading infotainment in a GM vehicle often involves choosing between a factory-correct retrofit or an aftermarket head unit. Both approaches can add features, but they differ in system integration and downstream impact.

Integration With Vehicle Systems

Factory-correct retrofits integrate directly with existing GM systems such as steering wheel controls, cameras, audio processing, vehicle settings, and diagnostics. Aftermarket units typically operate as isolated systems with adapters.

Feature Stability

• Factory-correct systems prioritize consistency and OEM behavior.
• Aftermarket units may offer rapid feature innovation but can rely on third-party interfaces.

Diagnostics and Service

OEM-style retrofits maintain compatibility with dealer diagnostic tools. Aftermarket systems may complicate troubleshooting or require removal for service.

Ownership Experience

Factory retrofits emphasize predictability and long-term support. Aftermarket systems may prioritize flexibility and lower upfront cost.

Choosing the Right Approach

Aftermarket head units can be appropriate for feature-driven upgrades or budget-focused projects. Factory-correct retrofits are typically favored when integration, reliability, and OEM behavior are priorities.