Troubleshooting and Specifications of the Jensen NVXM1000 XM Ready Navigation

Troubleshooting and Specifications of the Jensen NVXM1000 XM Ready Navigation
Why does the Jensen NVXM1000 not turn on?	The power cable may not be properly connected. Main hardware switch on bottom of unit is set to OFF.
Why is the GPS signal strength is weak on the Jensen NVXM1000?	Position the built-in GPS antenna to a better angle for signal reception. Relocate the antenna or purchase an external MCX GPS antenna.
Why do I not hear sound form the internal speaker on the Jensen NVXM1000?	The speaker may be turned off or redirected to the stereo speakers in your car or home. Press Setup/Audio. Press the button to change the setting from FMT Mode to Speaker Mode
Why do I not hear sound from my car stereo speakers using the Jensen NVXM1000?	You've selected an unavailable FM frequency. Tune to the correct FM frequency on Your car radio. Confirm FMT is on. Confirm XM antenna or FMT pigtail is Connected.
Specifications
Dimensions (W x H x D): 159 x 81.60 x 37.66 mm Operating System: Windows CE Version 5.0 Embedded Processor: Atlas II 300MHz Memory: 64MB SDRAM Flash Memory: 64MB Hard Disk Drive: 8GB Power Source: 12 ~ 24V DC (Using Cigar Jack) Power Draw (Standby): 0.2W Map Database: NavTeq Map Database Liquid Crystal Display (LCD): 4" LCD Antiglare Touch Panel TFT Touch Screen LCD Pixels: 480 Horizontal x 272 Vertical pixels

You can also access the User's Manual here