Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective XM FM Adapter

Extremely disappointed as it did NOT work! I had to drive an hour to get another one (plus the hour back!!)so my local store could finish the installation. I couldn't believe it when they said it didn't work! Now I just need to get my money back. Thinking it is not a good idea to buy electronics from AMazon as now there is the hassle of getting my money refunded!