4.3″ to 8″ Navigation upgrade for 2014-15 Chevrolet/GMC

db-gm42014-15 Silverado/Sierra 8″ Navigation Upgrade

Want factory navigation for your 2014-15 Silverado or Sierra that originally came with the 4.2″ non-touchscreen radio? Until now, this meant replacing it with an aftermarket radio that was a marginal fit at best.

With the introduction of the Rosen DB-GM4 8″ replacement upgrade for Chevrolet Silverado and GMC Sierra, you can now have an OEM experience with aftermarket navigation that includes an HDMI input that allows mirroring of your smartphone (additional parts may be necessary), as well as the ability to add a backup camera in vehicles that didn’t come with one!

The DB-GM4 system is compatible with all factory features and it matches the factory user interface’s icons, colors and design. This system is a true plug and play installation that upgrades the stock 4.2″ screen to an 8″  HD LCD screen and replacement OEM look trim panel, making it indistinguishable from a factory 8″ navigation system, and does not require dealer activation as well.

When the system is activated, you can choose Navigation, HDMI and AUX sources.

“AUX” accesses the auxiliary input for audio-only output from your audio device

“HDMI” allows you to plug your smartphone or tablet (iPhone & Android) into the supplied HDMI port to display the almost anything you can display on the phone on the factory display! (One-way only – no control of phone from touchscreen) This allows even more possibilities for navigation and information. Want live traffic info? Start your Google Maps or WAZE app. Want to listen to your streaming music app? Start Pandora or iHeart Radio & enjoy the app’s album art, information and graphics. The possibilities are limited only by the apps you have installed on your phone or tablet.

“Navigation” launches the awesome new iGo Primo Next-Gen system, giving you a completely new experience in navigation, with much more information, options and data available than the factory GM system. iGo Next-Gen navigation features a redesigned interface designed to enhance navigation usability while reducing distractions:

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If you currently own a Silverado with the 8″ touchscreen but don’t have navigation, check out the Advent CHVNAV2 navigation upgrade with HDMI input


  • Replaces 4.2″ factory screen with 8″ LCD HD touchscreen
  • Compatible with: 2014-15 Chevrolet Silverado 1500
  • Compatible with: 2015 Chevrolet Silverado HD
  • Compatible with: 2014-15 GMC Sierra & HD
  • Retains all factory functions – radio, camera, info (if equipped)
  • On-screen or steering wheel access/exit button for Nav feature
  • Auto Bluetooth call interrupt
  • RCA input for factory or Echomaster by ROSEN back-up camera
  • USB extension harness for future NAV and system software updates
  • Includes iGo Primo Next Generation mapping interface.
  • US/Canada & US/Canada/Mexico map sets available
  • Matching the factory user interfaces icons, colors and design makes it the ultimate accessory.
  • No dealer activation required.
  • HDMI input allows the view of compatible devices directly on the factory screen.
  • Adds backup camera input
  • 3 year warranty



Part Number: DB-GM4
Downloads: Quick Start Guide | Navigation Manual
Website: Visit Rosen's Website
Installations: View our installations of the DB-GM4
In Stock?: Usually - CALL FIRST
Normal shipping time: Five days | *Expedited shipping available* - please call for quote
Parts Warranty: Three Years
Labor Warranty: LIFETIME
Options: SiriusXM Radio

Included with local installation:
Module ONLY
NOT Included:
Apple HDMI Adaptor Cable


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