I have a soundstream VRN 64HB and the navigation cart is deleted

Reset, page 21 of the manual.

Manual and Factory Support

VRN-65HB-manual.pdf - Soundstream

https://soundstream.com > uploads > 2019/09 > V...
PDF
VRN-65HB. 2 DIN 6.2' Monitor. DVD/CD/MP3/MP4 Player. AM/FM Radio. Support Bluetooth. Support Mobile Phone link. Build in GPS. Owner's Manual.

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  Support - Soundstream Technologies

  https://soundstream.com > support
  VRN-DD7HB Android 9 Update and Older (Older than 2021 Model). (Above Not Compatible w/ Android Version 10 or 11 Phones). VRN-64HB / VRN-74HB - Android 7 / 8 ...

Reset button, Page 7 of the manual

VRN-DD7HB Manual - Soundstream

soundstream.com > manuals > Soundstream-VRN-...

PDF Eject Button Touch this button to eject a disc. If the disc is not removed for about 10 seconds after eject, the disc is reinserted automatically. Reset Button Press it with a thin, sharp object. The unit will then be reset to factory default settings.

https://www.youtube.com/watch?v=OWz7Cofdwow

https://www.cnet.com/products/soundstream-vrn-74hb-navigation-system-display-7-in-in-dash-unit-full-din/

You may can find assistance here: Connect Soundstream

Easy, you have faulty wiring somewhere.

Nothing for sale here on FIXYA
Hello Alex Agiular,

Just plenty of FREE advise...

Take a look at the eBay page (below)...

My favorite place for bits , pieces & outstanding support
is at the very bottom... TOP spot of available retailers
"crutchfield"

eBay results for soundstream vr 730b touch screen parts

5 STAR ... "Crutchfield" (retailer)
Your search for soundstream touchscreen returned the following

Good on you. Its not top of the line, but decent.
Congrats.

go to the manufactors website, and it should be under support, update map

did u fix the problem ??? im having the same issue