Product Description
Custom Autosound USA-230 for a Mercedes
If you own a classic Mercedes and need a radio, you've come to the right place. The Custom Autosound USA-230 comes from a company that designs its radios specifically for each vehicle. It arrives complete in one box with nothing to assemble. Call us at 574-226-6676 to confirm fit for your year.
The USA-230 has great features, including AM/FM stereo, 200 watts of power, a digital clock, and an electronic tuner with volume control. You can listen to AM/FM radio or plug in your iPod or a satellite radio tuner. An included RCA to 1/8" mini stereo cable means no other parts are needed to connect your music device. It also has a 4-way fader, L/R balance, 4-channel RCA pre-outs for an external amplifier, a power antenna lead, and bass and treble controls.
This radio is a great addition to your car. It comes with a 2-year Custom Autosound warranty. If you have any other questions, our customer service team is happy to help. We also offer fast, free delivery, and your radio ships within 4-5 business days.
This radio features:
● AM/FM stereo
● 200 Watts (4x50)
● Auxiliary Input (RCA Rear) RCA to 1/8" pin jack included
● Digital Clock
● Electronic Tuner
● 16 presets (12 FM, 4 AM)
● 4 Channel RCA Pre-outs
● 4-way fader
● Power Antenna Lead
Available with a black or chrome face
Questions About the USA-230 for a Mercedes
Will it fit my Mercedes without cutting the dash?
This listing is the version made for the Mercedes, designed to go into the original dash opening. Custom Autosound says its radios fit without altering or cutting the original dash.
What if my Mercedes has air conditioning?
The Factory Air option tells us which dash layout your Mercedes has, so pick Yes if it has factory A/C.
What can the USA-230 do?
The electronic tuner stores 16 presets, 12 FM and 4 AM. It's rated at 200 watts (4x50) and has 4-channel RCA pre-outs, so you can add an outboard amplifier later.
Can I buy speakers and an antenna at the same time?
You can add a front dual voice coil speaker, a rear 6x9 speaker pair (Custom Autosound 6x9 Speaker Pair and Upgraded Pioneer Speaker Pair), kick panels (W/Speakers, W/O Speakers, and Pioneer Upgrade), and an antenna (Hideaway Antenna and Power Antenna) right from the options above.
What else should I know about the USA-230?
It has a digital clock, a 4-way fader and a power antenna lead. There's a rear RCA auxiliary input, and Custom Autosound includes an RCA to 1/8" pin jack cable for phones, MP3 players or satellite tuners.
Will it work with a 6-volt system?
USA-230 specifications
- 200 watts peak power (50W x 4)
- AM/FM stereo tuner
- RCA auxiliary input
- 12 FM and 4 AM presets
- Electronic tuning and volume
- 4-channel RCA pre-outs for an external amplifier
- Separate bass and treble controls
- 4-way fader and left/right balance
- Power antenna lead
- Designed for original classic dash openings (no DIN cut required for vehicle-specific faceplates)
- Custom Autosound 2-year manufacturer warranty
USA-230 wiring and tech tips
Use this as a head-unit reference for power, ground, antenna, speakers, and amplifier connections. Always match the printed diagram that ships with your unit if it differs.
Power and ground (typical Custom Autosound harness)
| Function | Wire color |
|---|---|
| Ignition / ACC +12V | Red |
| Battery / constant +12V | Yellow |
| Ground | Black |
| Power antenna | Blue |
Ignition and power-antenna leads are commonly fused at 1A on the harness—confirm against the guide that ships with your radio.
Speaker wiring (typical)
| Speaker | Wire color |
|---|---|
| Left front + / − | White / White-Black |
| Right front + / − | Gray / Gray-Black |
| Left rear + / − | Green / Green-Black |
| Right rear + / − | Violet (or Purple) / Violet-Black |
USA-230 extras
Use the rear RCA AUX for a wired player. Pre-outs support adding an amplifier later without replacing the radio.
Suggested order for a classic Mercedes
- Disconnect the vehicle battery before any wiring.
- Connect ground first, then constant (yellow) and ignition (red).
- Connect the antenna plug and the blue power-antenna lead if your car has a power antenna.
- Wire all four speakers, matching polarity.
- If using an amplifier, run RCA cables from the front/rear (and sub on USA-740/USA-850) pre-outs.
- Reconnect the battery and test radio, speakers, and charging system voltage.
Tech tips for classic Mercedes
- This radio is sold for the factory Mercedes opening used in classic models—do not cut a modern DIN rectangle if you want a stock look.
- A poor ground is the most common cause of whine or weak audio; scrape paint at the ground point and use a star washer.
- If AM reception is weak, check the antenna mast, cable continuity, and that the antenna plug is fully seated.
- Vintage Car Radio does not install radios. If you are not comfortable with 12V wiring, use a qualified installer.
USA-230 manuals
Download the manufacturer guide for operation, safety, and the official wiring diagram. You can also browse our full library on the Manuals page.
Vintage Car Radio does not offer installation. The manuals are for do-it-yourself reference or to share with your installer.
Two-Year Custom Autosound Warranty
All Custom Autosound radios sold by Vintage Car Radio are backed by a 2-year manufacturer warranty from Custom Autosound.
Radios are checked before shipping. If something is wrong out of the box or under warranty, call us at 844-802-4499 or 574-226-6676 and we will help coordinate with the manufacturer.
Vintage Car Radio does not offer installation services. Refer to the Manuals and Wiring / Tech Tips sections for manufacturer guidance, or use a qualified car-audio installer.
FAQ — classic Mercedes USA-230
Will this fit my classic Mercedes without cutting the dash?
It is built for the original radio opening used on classic Mercedes models. Compare your dash opening and bezel to the product photos. We do not modify dashes in-house.
Does this radio have Bluetooth?
The USA-230 is a wired/AUX-focused radio without built-in Bluetooth. Consider a USA-740 or USA-850 if you want Bluetooth built in.
Do I need an amplifier?
Many owners run speakers directly from the radio. Pre-outs are there if you want more volume or a subwoofer later.
Do you install the radio?
No. Vintage Car Radio ships the unit and documentation; installation is DIY or by a shop you choose.
What is the warranty?
Custom Autosound radios include a 2-year manufacturer warranty. See the Warranty section for details.
Need help?
Call 844-802-4499 or 574-226-6676.
Specs
Wiring / Tech Tips
Manuals
Warranty
Two-Year Custom Autosound Warranty
All Custom Autosound radios sold by Vintage Car Radio are backed by a 2-year manufacturer warranty from Custom Autosound.
Radios are checked before shipping. If something is wrong out of the box or under warranty, call us at 844-802-4499 or 574-226-6676 and we will help coordinate with the manufacturer.
Vintage Car Radio does not offer installation services. Refer to the Manuals and Wiring / Tech Tips sections for manufacturer guidance, or use a qualified car-audio installer.
