Is this what you are calling a bezel? It replaces the stereo with a blank panel so that you can mount a 21st century aftermarket stereo with bluetooth, USB port (for MP3 and charging phone), Aux-In, SD card and many other features.
If this is what you are looking for, I know how to get one. Use the "conversation" tab to send me questions about it. This panel will fit ALL GL1500's '88-'00, made in USA, and mounts to the same points as the OEM stereo.