Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very scratchy sound

This XM Cassette adapter worked great the first few times I used it. Very clear sound. After about five uses, the sound deteriorated rapidly, and now, only a month after I started using it, listening to music is mostly listening to scratchiness. There is very poor sound quality across a range of music and podcasts. I do not drive my car every day, so in total, I've probably only used the adapter 10 times. Considering my limited use, I hoped to get at least a few months out of a cassette adapter. I would not buy this one again.