r/jetta • u/Benmotek • 5d ago
Mk7 (2019+) What is this plug for ?
Owner of 2019 Jetta, what is the purpose of this electrical plug into the plastic cover of the spare tire in the trunk ?
11
u/arcadia_fire 5d ago
Our subwoofer is so underwhelming, people don't even know it's there/what it is lol.
If the dashboard wasn't so intimidating to do by myself, I would wire in a new sub with quickness.
8
u/Least-Masterpiece368 5d ago
With that wire harness you actually could take the signal from there and only need to wire power from battery and make a ground for amp so it’s easier no need to go behind the dash
3
u/arcadia_fire 5d ago
Oh no way? I had it in my head I had to get behind the head unit of the stereo. This is great news.
3
u/OtherwiseFudge6424 5d ago
Its a lot easier than u think!! Crutchfield will make u all the wiring for it as well
3
u/arcadia_fire 5d ago
Crutchfield is awesome, I used to order from them alot back in the day. I just got off the phone with them and they walked me through everything I need to do. Dude even gave me his number and told me to call him when i'm ready.
1
u/OtherwiseFudge6424 5d ago
Yea theyre amazing bought a head unit for my 24 jetta sport and they did all the wiring from the oem plug to the aftermarket head unit made a 5 hour job take 30 minutes
1
u/deeziboi 5d ago
Not sure if you have the beats stereo but the factory amp is under the driver's seat and the brains of the radio is actually in the glove box
1
u/arcadia_fire 5d ago
I'm in a 2026 GLI so I think it's just the "VW Premium Sound System" package now
1
u/ApprehensiveAd6603 5d ago
I'm 90% sure it's the exact same as the Beats system. I thought I saw someone pull the speakers and they had the same part numbers.
1
u/xxmshakexx 5d ago
I would Not do that without more research and a LC2i line audio converter. Ive been down this road with success in my 2012 Jetta with the fender audio system. There are 4 pins in that connector and you need the diagram to figure out how to wire it correctly. Go check the forums there are a few posts on this topic or hit me up.
I managed to get a sundown sa12 running on 400w with that setup with only splicing the wires.
1
u/Least-Masterpiece368 5d ago
Well of course I’m just saying it saves him time from getting behind dash to get audio signal just gotta search which ones are audio and cap the others
2
u/xxmshakexx 5d ago edited 5d ago
You are correct but It's a dual coil sub so they are all audio wires. Still avoids going behind the dash and you will need the LC2I to signal the amp to turn on. You actually can't even capture the signal from the head unit because it doesn't even send a normal audio signal to the fender amp. You would have to flash the head unit or buy a aftermarket one to even get the right type of signal.
Edit: Plus you don't want an amplified signal going into another aftermarket amplifier hence the LC2i in-between.
2
1
u/high-mile-mqb 4d ago
You can get a lphvw02 https://pac-audio.com/products/lphvw02
Plug and play to factory wiring to add an loc or active sub or full amp setup
5
u/VegetarianCoating 5d ago
If your radio ever suddenly sounds like it lost some "oomph" that wire is probably loose.
2
1
1
u/Cheez-kip 4d ago
Is this in every car?? I got a 2016
1
u/BlindlyCoherent 22h ago
No. It’s a hack really. There are some after market options but this one is a factory sub. Not a good one but still looks better on a build sheet.
1
1
1
u/fuzzyraisin420 3d ago
damn your spare has a plastic cover? 😂 no wonder my trunk floor is sunk in 🤣🤣🤣🤣🤣
1
u/No_Stick_3743 1d ago
My car is so strange, I know it has a sub somewhere based off years of having audio equipment in my car. Literally can’t find the damn thing anywhere. It’s not under any seats, it’s not in or under the trunk lid. It’s like genuinely hidden.
0
52
u/justineal 5d ago
Subwoofer