This Subwoofer Kit is made to connect to our Plug and Play amplifier harnesses below.
AAI4-VW16
PNPAMP-EURO16
The audio portion is a direct plug and play from the harness above into the amplifier.
The power wire must be run to the battery and ground connected in the trunk.




Christopher Rogers
verified ownerChristopher Rogers (verified owner) –
Installed in a 2025 VW GLI (non-Beats). Matched up with Focal tweeter and 5.25 door speakers in the front as well as Focal 5.25 coaxial in rear door. Front and rears powered by Kicker 200.4 amplifier.
200.4 and harness provided by Enfig as well as part of EURO16-KEY2004.
Overall very happy with everything.
Brian L.
verified ownerBrian L. (verified owner) –
Repeat customer, got the Atlas Kicker Key 200.4 system which is awesome! Decided I wanted a bit more bass and came right back here for the Key 500,1 system. Enfig has put together 2 excellent systems, 10/10 would recommend!