When my wife agreed to an extensive avionics upgrade to our Piper Arrow, I was pleased that she immediately understood the safety value of the endeavor despite the eye-watering cost. Based on our experience of a vacuum pump failure, an intermittent dual comm failure, and the fact that the entire system was aging, it was time for a change.
Avionics shops don’t just install a standard instrument panel template for a 54-year-old airplane. It’s a carefully thought-out strategy of integrating the new with the old, dependent almost completely on customer desire and budget. Selection and placement of the electronics is a la carte. Although the shopping process to determine the best value for our airplane was exciting, it alerted me to an interesting challenge.

![Let’s Talk About a La Carte Avionics The author's 54-year-old Piper Arrow with its modern glass panel. [Credit: Les Abend]](https://tbh.express/wp-content/uploads/2026/07/Lets-Talk-About-a-La-Carte-Avionics-768x577.jpeg)