It's not uncommon to see entertainment systems in cars evolve. Over the years, things like cassette and CD players have become popular in vehicles – and fallen by the wayside as new technologies come into play. The one consistency has been the presence of the radio, but even that may be facing some stiff competition from newer methods of listening to music. 

"AM and FM as a delivering mechanism isn't going to be the most important in cars anymore," Thilo Koslowski, vice president at the technology research firm Gartner Inc., told The Detroit News. "By 2020, I feel very confident that many consumers will consume radio content through avenues other than terrestrial broadcast." 

Many manufacturers are already making moves to include smartphone connectivity services in cars, especially when it deals with music streaming. In the past few years, many automobiles have been released with adaptors for smartphones and MP3 players. This technology makes it easy for drivers to get their favorite tunes at all times, as well as access to tools like GPS navigation systems or hands-free communication. 

Although traditional radio will still be included in most cars, at least for the near future, automakers are choosing to focus on ways to make live streaming or web browsing easier. Many customers want to have all options included in their rides, whether it's satellite radio, AM/FM or MP3 connectivity. 

Used cars with traditional radio as well as other connectivity options are up for sale at NJ State Auto Auction. The lot is filled with CARFAX certified vehicles, so you can choose from an array of great models ranging from sedans to trucks to vans. If you're looking for your next ride, head over to the New Jersey Auto Auction to find the right car for your needs.