Pioneer TS-G1020S 4-inch Coaxial Speakers
- 30 W nominal
- 87 dB sensitivity
- No amp needed
Approximate installed estimate $210 parts $60 + labor $150
In-store pickupPaid at the shop.
Call, text or come by for your exact price and package deals.
2018 BMW 3 Series stereo and speaker fit
In the 2018 BMW 3 Series, the factory radio can't be swapped for a standard aftermarket stereo, so the usual upgrade is speakers, an amp, a processor or a sub. Factory speaker sizes: 4" front doors and rear doors. Audio MotorSports in Carson stocks stereos and speakers that fit and installs them in its own bay, often the same day.
What fits the 2018 BMW 3 Series
| Vehicle | Dash opening | Front doors | Center dash | Rear doors |
|---|---|---|---|---|
| 2018 BMW 3 Series | Factory radio can't be swapped for a standard aftermarket stereo ✓ Verified | 4" ✓ Verified | Confirm at the shop | 4" ✓ Verified |
In stock in Carson
Gear for the 2018 BMW 3 Series
JBL Club 44F 4-inch Coaxial Speakers
- 35 W RMS
- 90 dB sensitivity
- Silk dome tweeter
Approximate installed estimate $229.95 parts $79.95 + labor $150
In-store pickupPaid at the shop.
Call, text or come by for your exact price and package deals.
Pick your exact year and trim in Shop by vehicle; we confirm the fit before you buy.
Install notes for the 2018 BMW 3 Series
- Some trims have factory Harman Kardon premium sound, which can wire differently; we check your trim before you buy.
- Not confirmed yet: center dash. These say "Confirm at the shop" until our sources agree; we check them with your trim.
Local pickup and install in Carson
In-store pickup at 22025 S Avalon Blvd Ste A, Carson. Paid at the shop. Buy now, pay later with the Payment Plan (Synchrony, Zelle, Venmo, PayPal, crypto, credit cards over the phone).
Sizes marked "Confirm at the shop" are ones our sources do not agree on yet, or that change by trim or premium audio. We confirm before you buy. Fit data checked against Metra dash kit and speaker guides and published vehicle fitment data and Crutchfield vehicle research.
Speaker upgrade
More for your BMW 3 Series
BMW 3 Series speaker upgrade guide
Car guides: Keeping the factory radio · Speakers, sub or amp: where to start
Other BMW 3 Series years
- 2026 BMW 3 Series · 2024–2025 BMW 3 Series · 2023 BMW 3 Series · 2020–2022 BMW 3 Series · 2019 BMW 3 Series · 2017 BMW 3 Series · 2014–2016 BMW 3 Series · 2012–2013 BMW 3 Series · 2007–2011 BMW 3 Series · 2006 BMW 3 Series
2018 BMW 3 Series stereo and speaker fit: questions
What size speakers are in the 2018 BMW 3 Series?
4" front doors and rear doors. We stock speakers in these sizes in Carson and install them.
Does the 2018 BMW 3 Series have a premium sound system?
Some trims have factory Harman Kardon premium sound, which can wire differently. We check your trim before you buy.
Are all the speaker sizes for the 2018 BMW 3 Series confirmed?
Not yet: center dash still say "Confirm at the shop". Text us with your trim and we will check.
Can we install it?
Yes. Bring the 2018 BMW 3 Series to 22025 S Avalon Blvd Ste A, Carson. We confirm the trim and install in our own bay, often the same day. Text or call us.