Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works great

This gadget works great, with some expected static, however I own a '91 Explorer and did have to go to Radio Shack to get a car power extension cable before I was able to plug it in, because the unit itself is too big to fit into the area where the cigarette lighter is...but it does work great and was worth the extra $8.00 to get running.