Great looks, I like its hidden look. Arrived on time and fits the 350Z perfectly. I don't listen to stereo, so I don't know if I lost the signal. I would recommend this to the next person to ask.
Looks 100 times better than the original! In the city (Phoenix) I have good radio reception. Outside of town it can be patchy. I don't really listen to the radio in my car, but I checked it out to make sure.
Used on a 2007 Honda Fits, looks good, had the hex screw greased to keep it from rusting (because it will), looks great. But it doesn't help with radio reception. Probably about 1/4 radio reception lost. But we use it anyway!
I wish I could give this one more stars because it's amazing but the anodizing went gold and that basically ruined it. The only reason I'm giving it 2 instead of 1 is to keep it there. I prefer gold and small than OEM.