Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Item Misrepresented!

Since this was my first xm radio purchase, I'm a little green as to the correct antenna to buy. I ordered this because the picture showed a antenna, my fellow truck driver bought that was the right one, the antenna I recived does not look anything like this one, It's not the same! Also a customer review I read said it could be mounted two ways, mirror, or air dam. What I got was an antenna that ONLY mounts on the air dam (I needed the mirror mount type for now),and as I found out latter, was some old type technology, that requires two antenna (in) ports on your radio. My NEW skydock only axcepts one. Because I waited too long to exchange this, I am now stuck with a worthless piece of old technology. Have a Great day!..