Product Description
The USA-230 for the Buick Roadmaster has a rear auxiliary input, so you can play music from your iPod, phone or any device with a headphone jack. It stores 16 presets (12 FM, 4 AM) and has 4-channel RCA pre-outs. The 1/8" aux jack is on the back of the radio, keeping the front looking classic. With 200 watts of power, it sounds much better than the original radio. A digital clock, electronic tuning, a 4-way fader and a power antenna lead make it easy to use.
Custom Autosound's USA-230 is an amazing choice for owners of the classic 1954-56 Buick Roadmaster. A power antenna lead helps you pull in AM and FM stations and all 16 presets (12 FM, 4 AM), and the 4-way fader lets you customize how your music or news sounds. Four-channel RCA pre-outs let you add an amplifier for more speakers or even a subwoofer.
The display includes a digital clock, and the electronic tuner locks in the clearest signal every time you switch stations. The rear auxiliary input uses a 1/8" jack, commonly known as 3.5 mm.
That's the same size as a standard headphone plug, so you can easily play media from an iPod, iPhone, satellite radio or any device with a headphone jack. With 200 watts of power, a power antenna lead, multiple channels and an aux input, you have full control over what you play. It's a decision you won't regret.
The Custom Autosound USA-230 for the 1954-56 Buick Roadmaster quickly became a favorite with owners, thanks to features like these:
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Common Questions About the 1954-56 Buick Roadmaster USA-230 In Dash AM/FM
Which vehicles is the 1954-56 Buick Roadmaster USA-230 In Dash AM/FM listed for?
Our vehicle search lists it for the 1954-1956 Buick Roadmaster. Use the vehicle search to confirm your exact car.
How does the USA-230 handle phone audio and connections?
It's rated at 200 watts (4x50) and has 4-channel RCA pre-outs, so you can add an outboard amplifier later. The electronic tuner stores 16 presets, 12 FM and 4 AM.
What else should I know about the USA-230?
It skips the USB port, iPod dock and CD changer control found on the USA-630, but keeps the same look. It has a digital clock, a 4-way fader and a power antenna lead.
My 1954-56 Buick Roadmaster is 6-volt or positive ground. Can I still use this?
The order form has Voltage (12 volt and 6 volt) and Ground (Negative and Positive) options, so set them to match your 1954-56 Buick Roadmaster.
Can I buy speakers and an antenna at the same time?
The options on this page let you add a front dual voice coil speaker, a rear 6x9 speaker pair (Custom Autosound 6x9 Speaker Pair and Upgraded Pioneer Speaker Pair), and a hideaway antenna.
Will it keep the stock look of my 1954-56 Buick Roadmaster dash?
Yes. It's built to keep the original look in the 1954-56 Buick Roadmaster dash while adding modern features.
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 1954-1956 Buick Roadmaster
- 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 1954-1956 Buick Roadmaster
- This radio is sold for the factory Buick Roadmaster opening used in 1954-1956 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 — 1954-1956 Buick Roadmaster USA-230
Will this fit my 1954-1956 Buick Roadmaster without cutting the dash?
It is built for the original radio opening used on 1954-1956 Buick Roadmaster 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.
