1.   Hughes makes stereos, theft-deterrent systems, engine and transmission control systems, and collision warning devices for GM vehicles.

2.   Hughes provides stereos, theft-deterrent systems, engine and transmission control systems, and collision warning devices for GM vehicles.

3.   The pilots of both planes reported that their collision warning devices went off, forcing them to take emergency measures.

4.   The pilots of both planes have reported that their collision warning devices went off, forcing them to take emergency measures to avoid potentially crashing into each other.