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The market is full of options for drivers who want navigation assistance, from OnStar’s voice-guided directions to various in-dash and aftermarket map displays. If you’re wondering which system is right for you, check out our newest gadget primer, GPS on the Go. Staffer Nina Kim details exactly what’s out there, as well as the pros and cons of each option.

There’s also a feature on in-car MP3 audio systems, a new option popular among today’s iDrivers. Both articles are part of our Top 10s and More section, available under the Shopping Advice tab on Cars.com.