u/Calm_Wafer1277

▲ 2 r/CarAV

Upgrading Megane 4 speakers to JBL Stage3 627F — any tips or precautions?

Hey everyone,

I’m planning to upgrade my car’s front speakers to JBL Stage3 627F and will be using adapter rings + new wiring to fit them properly.

The car is Megane 4 Grandtour from 2019 with factory preset speakers (non Bose version)

This is my first time doing a speaker upgrade, so I wanted to ask for any advice before I start the install.

Plan:

Install Alubutyl 2mm

Add foam for the plastic panel.

Add speakers with use of an adapter ring and wires so that it makes it easier.

A few things I’m specifically curious about:

Any tips for getting a clean fit with adapter rings?

Do I need to worry about polarity or impedance issues with these speakers?

Is it possible to do on my own or have a friend help me out?

Any common mistakes to avoid during installation?

Would really appreciate any tips, tricks, or lessons learned from your own installs. 🙌

Thank you in advance

reddit.com
u/Calm_Wafer1277 — 5 days ago