The Ultimate Guide to Avionics Upgrades: What to Replace First (and Why)
Upgrading your aircraft’s avionics can completely transform the way you fly — improving safety, navigation, and even resale value. But with so many options available, it’s easy to feel unsure about where to start. Should you upgrade your GPS first? Replace your COM radio? Or go all in with a glass cockpit conversion?
Let’s break down which avionics upgrades should come first, why they matter, and how to plan your panel transformation efficiently.
Cessna 172 Instrument Panel Upgraded with Garmin Avionics at Sebastian Communications Inc.
🧭 1. Start with Your GPS/NAV/COM System
If your current GPS or NAV/COM is more than a decade old, that’s the first place to start. Today’s GPS units offer touchscreen technology, faster processing, and integrated flight planning that make flying smoother and safer.
Systems like the Garmin GTN™ 650 are a pilot favorite because they combine GPS, COM, and NAV functions in one compact unit — saving valuable panel space while delivering IFR-approved precision navigation.
Whether you fly IFR regularly or just want to future-proof your aircraft, upgrading your GPS/NAV/COM gives you the biggest performance leap for your investment.
⚙️ 2. Upgrade Your Transponder for ADS-B and Traffic Awareness
If you haven’t already added ADS-B Out (and ideally ADS-B In), this should be your next upgrade. ADS-B enhances situational awareness by broadcasting your aircraft’s position to other pilots and ATC.
Pairing a modern transponder with a GPS like the GTN™ 650 or a compatible display allows you to see real-time traffic and weather data directly in your cockpit.
📡 3. Add or Modernize Your Autopilot System
A reliable autopilot isn’t just about comfort — it’s a major safety tool that reduces pilot workload. Modern digital autopilots can hold altitude, intercept flight plans, and integrate with your GPS.
When properly configured, systems like the GFC 500 work seamlessly with units like the GTN™ 650, giving you smooth navigation transitions and precise flight tracking.
💻 4. Consider a Glass Cockpit or Primary Flight Display (PFD)
Once your core navigation and communication systems are up to date, the next step is upgrading to a PFD or multi-function display (MFD). This brings all your critical flight data — attitude, altitude, speed, and navigation — into one clean interface.
Upgrading to a modern glass cockpit not only improves readability but also boosts your aircraft’s value.
🔋 5. Don’t Overlook Power, Wiring, and Panel Design
Behind every great avionics upgrade is a solid electrical foundation. When redesigning your panel, ensure your wiring harness, breakers, and bus systems are updated to handle new power requirements.
This is where working with an experienced avionics installation shop pays off — a professional layout and wiring job ensures reliability, proper cooling, and FAA compliance.
🛠️ 6. Work with a Certified Avionics Installer
Even the best avionics won’t perform properly without expert installation and calibration. A certified shop can help you design your ideal panel layout, ensure compatibility between systems, and provide documentation for airworthiness approval.
Whether you’re adding a new autopilot, or a full panel redesign, professional installation ensures your upgrades work together safely and efficiently.
✈️ Ready to Upgrade Your Avionics?
If your aircraft is ready for a modern touch, our team can help you design, install, and configure the perfect panel setup for your flying style and mission needs.
👉 Contact us today to schedule an avionics consultation or get a quote for your next panel upgrade.