Product Description
- AM/FM stereo
- 200 watts of power
- Rear auxiliary input for devices with a headphone jack
- 6.5-inch mounting depth
- Digital clock
- Power antenna lead
- 16 presets (12 FM, 4 AM)
- 4-channel RCA pre-outs
- 4-way fader
- Electronic tuner
- Separate bass and treble
- It weighs 2.59 pounds
After the grand success of the vintage car radio of USA-630, it is time for Custom Autosound 1957-58 Buick Roadmaster USA-230 to repeat this similar outstanding result. Available in chrome or black face, this radio can be purchased at an affordable budget amount. As for its features, look for them below:
| Features
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Questions About the 1957-58 Buick Roadmaster USA-230 In Dash AM/FM
Do I need to modify the 1957-58 Buick Roadmaster dash to install it?
This listing is the version made for the 1957-58 Buick Roadmaster, designed to go into the original dash opening. Custom Autosound says its radios fit without altering or cutting the original dash.
Which add-ons are offered with this radio?
You can 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 right from the options above.
What if my 1957-58 Buick Roadmaster has air conditioning?
Select Yes or No under Factory Air so we send the correct setup for your 1957-58 Buick Roadmaster's dash.
Does it look like the original radio?
The 1957-58 Buick Roadmaster USA-230 In Dash AM/FM is styled to look like the factory radio, so your dash keeps its period appearance.
What can the USA-230 do?
It's rated at 200 watts (4x50) and has 4-channel RCA pre-outs, so you can add an outboard amplifier later. It has a digital clock, a 4-way fader and a power antenna lead.
Will it work with a 6-volt system?
The order form has Voltage (6 and 12) and Ground (Positive and Negative) options, so set them to match your 1957-58 Buick Roadmaster.
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 1957-1958 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 1957-1958 Buick Roadmaster
- This radio is sold for the factory Buick Roadmaster opening used in 1957-1958 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 — 1957-1958 Buick Roadmaster USA-230
Will this fit my 1957-1958 Buick Roadmaster without cutting the dash?
It is built for the original radio opening used on 1957-1958 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.
