Yes, it's completely normal. Our new radio replaces some functions of the factory radio, and hence, some original plugs might not be required. Also, car manufacturers often include standard wiring for features, even if the original car buyer did not opt for them. For example, the car might be pre-wired for a backup camera even if the camera wasn't installed. These plugs are there to accommodate potential future upgrades. Secure any leftover plugs with cable ties to ensure they stay in place inside the dashboard.