Title: Excellent
Review: I own a Sportster 4 which has the new, low power FM modulator so when I purchased this item I had low expectations but I was amazed that it works so great. I have used The SIRIUS FM Antenna Extension Cable and its instructions say to find a frequency with no station but I always got interference. This item, the Sirius Wired FM Relay, does what is supposed to do. I decided to try something as a test to see how good it really works. I set my radio on the most powerful FM station in my area and I set the modulator frequency to the same and it completely cancels out the over the air radio station with no static what so ever. Using a cassette adapter or a direct input cable are easier since you don't need to remove the radio to install them but if you do not have the option of a cassette player or direct input this unit works excellent.
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