Most radio stations have something called an RDS, or Radio Data System, that embeds information in the signal like the station name, programming features and song information.  Most of today's vehicles have RDS built into them to display that text.  But earlier this week, some public radio stations were displaying a vulgar message that was not sent by the stations.

Hackers were able to infiltrate the coded signal and send a message of their own that slammed the host of their noon show, Fresh Air with Terry Gross.  Michigan Radio is a public radio network owned by the University of Michigan.  While one report was unclear on what the message said, one subscriber to the Michigan Radio & TV Buzzboard posted  a picture of their radio as it displayed the hacked message.

"Terry Gross has a small penis" was displayed on WFUM 91.1 in Flint, and another affiliate in Western Michigan.  Michigan Radio took immediate action upon realizing the hacking had taken place, including changing the system's passwords, and posting a letter of apology to its listeners.  While officials still don't know who hacked the signal, they are working with the U of M's IT department to trace the source.

It's unclear if the above message was the only one sent.

Flint + Saginaw's Most-Popular TV Anchors - Where Are They Now?

A lot of highly talented people have sat behind the anchor desks at the area's TV stations.

We're taking a look at some of the area's most popular news, weather, and sports anchors who have visited our homes electronically and then moved on.

16 Notable and/or Famous People From Grand Rapids, Michigan

Check out just 16 famous or notable people from Grand Rapids, Michigan. 

11 Famous and Notable People from Kalamazoo, Michigan

Check out just 11 famous and notable people from Kalamazoo, Michigan.

Check Out the Harper House, a Rare Frank Lloyd Wright Home in Michigan

The Harper House is a stunning home with an incredible view of Lake Michigan. It's believed to be one of just a few Michigan homes designed by legendary architect Frank Lloyd Wright.

There are conflicting accounts of the home's age online; it was either built in 1950 or 1959. If the latter is true, this would make it the last home in Michigan to be designed by Wright.

According to the listing, it features Tidewater Cypress and Chicago Common Brick, mitered glass corners, several pieces of built-in furniture, cedar-lined closets, and more. It is simply breathtaking.

The property is reputed to rarely go on the market, but it was just listed for sale by by Anne Gain of @Properties.

More From US 103.1 FM