Conclusion: There's noting wrong with the 301 this isn't a problem for all add-on HD units. It's an add-on rather than built in, and therefore you have to find a place for it. The unit decodes HD Radio signals for compatible receivers. I've used it for six months and haven't had a single problem. Of course, there aren't many HD Radio signals to receive around here, anymore. There used to be five, I think. Now I only pick up one on an average day.
Conclusion: This stereo is seriously "winning". I love it and my wife couldn't ask for anything mroe. Does everything we needed and more, and the menu is easy to navigate and the screen is easily readable in day and night. Don't think just buy! To the antenna review person.. most stereos only come with one antenna plug. Do your research before you buy.
Conclusion: I am not overall happy with this product but time will tell. I do not have many HD stations in my area. The only reason I bought this unit is because I wanted the song title etc., to display on my dash since my Calrion CX501 do not have RDS built in.