Product Description
The Buick Roadmaster was Buick's flagship for decades, a big, comfortable car with a beautifully styled dash. This Custom Autosound USA-230 is designed for the classic Roadmaster and is built to fit with no alterations, so you get a classic car with modern radio technology.
Made for the Roadmaster
Call us at 574-226-6676 to confirm fit for your year. The order form asks for Factory Air, Voltage (12 volt or 6 volt) and Ground (negative or positive) so we send the correct setup. The radio runs on 12-volt negative ground. Many earlier Buicks used 6-volt systems, and Custom Autosound makes converters for 6-volt and positive ground cars.
Features
- Power antenna lead
- Black or chrome face
- AM/FM stereo with an electronic tuner
- 16 presets (12 FM and 4 AM)
- 200 watts (50 watts x 4)
- Rear RCA auxiliary input, with an RCA to 1/8" pin jack cable included
- 4-channel RCA pre-outs
- 4-way fader
- Digital clock
The 200 watts of power fill the Roadmaster's large cabin, and the electronic tuner gives precise tuning. When the radio is switched off, it shows the clock. The rear auxiliary input with the included cable lets you play music from a phone or MP3 player.
Easy to Wire
The radio comes with instructions and clearly marked wires, which makes installation straightforward for anyone comfortable with basic car wiring.
Options
- Front dual voice coil speaker
- Rear 6x9 speaker pair, Custom Autosound or upgraded Pioneer
- Hideaway antenna
A dual voice coil speaker carries both stereo channels through the single dash speaker location, and rear 6x9s in the package shelf complete a four-speaker setup.
Warranty
Custom Autosound radios sold by Vintage Car Radio carry a 2-year warranty against manufacturing defects.
Why Custom Autosound
Custom Autosound is a leading maker of radios for classic cars, and its vehicle-specific approach means the radio fits the car rather than the other way around. For a car as stately as a Roadmaster, that matters.
Before You Install
Inspect old wiring, use a fused power feed and a clean ground, and bench test before final mounting. An auto radio specialist can install it if you prefer. Vintage Car Radio sells the radio and accessories but does not offer installation.
Filling a Big Cabin
A Roadmaster's interior is wide and quiet, which makes it a great place to enjoy music. With four channels of output and a 4-way fader, the USA-230 can drive a dash speaker and rear speakers for full stereo, and the 4-channel pre-outs give you room to add an amplifier if you want even more sound.
Custom Autosound USA-230 for Buick Roadmaster FAQ
Will it fit my Roadmaster without changes?
It is designed to fit the Roadmaster with no alterations. Call 574-226-6676 to confirm fit for your year.
Does it show the time?
Yes. It has a digital clock that shows when the radio is off.
Can it run in a 6-volt car?
The radio needs 12-volt negative ground. Custom Autosound makes converters for 6-volt and positive ground systems.
Is it hard to wire?
It comes with instructions and clearly marked wires.
What is the warranty?
Custom Autosound radios carry a 2-year warranty.
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 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 classic Buick Roadmaster
- This radio is sold for the factory Buick Roadmaster 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 Buick Roadmaster USA-230
Will this fit my classic Buick Roadmaster without cutting the dash?
It is built for the original radio opening used on classic 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.
