Hidden 5G Travel Router Install in Van Headlining (DIY Guide)

The Problem

You need always-on mobile internet in the van for remote work and streaming, but Starlink pricing increases make it poor value for occasional use, and there is no integrated internet solution in the van. The goal is a hidden, permanently wired router install rather than a loose plug-in unit.

Solution

Before you start — identify your van. The original install was a behind-the-headlining job, but headlining construction, the depth of the void above it, and how the interior light unit is removed differ significantly between a VW Transporter (and between T5, T6 and T6.1), a Mercedes Sprinter, a Ford Transit and other platforms. The clip counts, screw locations and trim-removal steps below are generic and may not match your van. Confirm the correct light-unit removal procedure for your exact make, model and generation before prising anything — on many vans the headlining panel and light units are not designed to be removed without releasing specific clips or fasteners (confirm this applies to your van and generation).

1. Buy a GL.iNet Mudi 7 (GL-E5800) travel router and fit a Lebara SIM — the Lebara 30-day plan gives 50 GB with 30 GB usable across Europe. (Confirm current plan allowance before ordering, as operator deals change.)

2. Remove the router's internal lithium battery before fitting. A battery held at 100% charge in a hot, enclosed headlining space degrades quickly and risks swelling or venting.

3. Locate the interior light unit at your chosen install point. Depending on your van, it is released either by carefully prising with a plastic trim tool from one edge to pop the retaining clips, or by undoing the screws revealed when the lens/bulb cover is opened. Note the clip positions and prise direction for YOUR van before applying force — levering against fixed clips will crack the lens or the headlining (verify exact clip count and screw locations for your specific van before removing).

4. Disconnect the light unit's connector, pull it clear and check there is enough clear void depth above the headlining to take the Mudi 7 without bulging or pressing on the panel. Tuck the router into the void where it will not foul the headlining or any wiring/airbag components.

5. Power the router correctly. The leisure battery supplies 12 V DC, but the Mudi 7 is USB-C powered at 5 V — do NOT connect it directly to 12 V or you will destroy it. Wire a 12 V-to-USB-C step-down (buck) converter rated for at least 5 V/3 A (15 W) to suit the router's draw; a 5G router can draw more under load, so size the converter with headroom (verify the router's exact power requirement on the GL.iNet spec sheet). Fit an inline fuse in the 12 V positive feed close to the leisure battery/distribution point — around a 3–5 A fuse suits this low-current load (verify against your converter's input rating). Use a minimum of 18 AWG cable for the 12 V run, going thicker for longer cable lengths to limit voltage drop. Route and secure the cable, then refit the light unit, taking care not to trap or chafe the wiring as you reseat the clips/screws.