The sunshade will open automatically with the sunroof when the glass panel moves. If you want it closed, move the sunshade manually.
NOTICE
The sunroof is made to slide together with the sunshade. Do not leave the sunshade closed while the sunroof is open.
Hyundai Elantra AD (2016-2020) Service Manual: Cylinder Head Repair procedures
Removal
Engine removal is not required for this procedure.
•
Use fender covers to avoid damaging painted surfaces.
•
To avoid damaging the cylinder head, wait until the engine
coolant temperature drops below normal temperature (20°C [68°F]) before
removin ...
Hyundai Elantra AD (2016-2020) Service Manual: Speakers Repair procedures
Inspection
1.
Troubleshooting for Speaker
(1)
Basic inspection of speaker
Inspect the sound from speaker after verifying that the
speaker mounting screws is removed and the wiring connector is connected
precisely to remove vibration transmitted from body trims and
surrounding parts.
...