Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Quick and easy

I bought two of these. They work great right out of the box. I wanted to play my own playlists through my radio but I have an older car. This device does a great job. The only time we detected interference was while charging the phone from a different power source within the car. The channel you select does make a difference. We use 87.7.It took use about 2 min. to set it up the first time. Now I plug it in and get it going in half a minute.