Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Buy something else

I'm usually pretty optimistic about items I buy and I still buy items with negative comments, this time I paid for my ignorance. This receiver has so many negatives. The radio is huge, mounting it in my car was insane. It covers a ton of space and is heavy. I bought the wearable kit but it's a workout just trying to carry this unit, give up and buy an I-Pod. The software on the unit was old and I had to spend hours online trying to upgrade it. Even when I did upgrade, it still locks up and the unit absolutely won't work if the unit is cold (I don't mean freezing, just chilly). The FM transmitter is useless, it doesn't work at all. If you buy it, plan on using the MP3 plug on your vehicle. I'm switching it out with my 5 year old receiver and throwing this piece of junk in the garbage. Buy something else.