Product Description
The 1957-58 Buick Century combined Buick's big V8 with its lighter body for strong performance and plenty of chrome. This Custom Autosound USA-630 is the 1957-58 Buick Century version, made to keep a classic look in the dash while adding modern features.
Fit and Ordering
This listing is the 1957-58 Buick Century version of the USA-630, made for the factory radio opening. Confirm fit for your model before ordering.
When you order, the form asks for:
- Factory Air (Yes or No)
- Voltage (12 volt or 6 volt)
- Ground (Negative or Positive)
About the Radio
The USA-630 is Custom Autosound's best-known classic car radio. It keeps a period look in the dash, but behind the face is a modern unit with an RDS tuner, USB playback, an iPod dock and direct control of an optional CD changer.
Why a Vehicle-Specific Radio
A universal stereo usually means cutting the dash or using an awkward bracket, and it rarely looks right in a classic. A radio made for your vehicle fits the original opening, keeps the knobs and face where they belong and can be removed later if you ever want to go back to the factory radio.
Specifications
- AM/FM stereo with an RDS tuner that shows artist, song and station
- 300 watts peak power
- USB port for WMA/MP3 files on a flash drive
- iPod dock with control buttons
- 2-channel RCA auxiliary input
- Direct control of an optional CD changer
- Negative LCD (white characters on black) with alphanumeric text
- Loudness, digital EQ, separate bass and treble, 4-way fader and left/right balance
- 16 presets (12 FM and 4 AM) and a USA/Euro tuner
- 4-channel RCA pre-outs, power antenna lead and an always-on digital clock
Add-Ons
- CD/Bluetooth: a single slave CD player that the radio controls, or a Bluetooth adapter (Custom Autosound's BluKit) for music streaming and hands-free calls
- Front dual voice coil speaker, which plays both stereo channels through a single dash speaker
- Rear 6x9 speaker pair, Custom Autosound or upgraded Pioneer
- Hideaway antenna
More Than Radio
The USB port plays MP3 and WMA files, the iPod dock lets you browse from the radio's buttons, and RDS shows station information.
Warranty
Custom Autosound radios sold by Vintage Car Radio carry a 2-year warranty.
Getting It Installed
Custom Autosound radios run on 12-volt negative ground. The Voltage and Ground menus tell us what your car has. For 6-volt negative ground systems Custom Autosound makes the NGVB-HC voltage booster, and for positive ground systems it makes the PGPI-HC power inverter. Contact us if you are not sure which your car needs.
Bench test the radio before final mounting, use a fused power source and make a clean ground connection. If you would rather not do the wiring yourself, an auto radio specialist can install it. Vintage Car Radio sells the radio and accessories but does not offer installation.
USA-630 for 1957-58 Buick Century FAQ
Will it fit my 1957-58 Buick Century?
This is the 1957-58 Buick Century version. Contact us to confirm fit for your year.
Can I add Bluetooth?
Yes. Choose the Bluetooth adapter (BluKit) in the CD/Bluetooth menu.
Can I add a hideaway antenna?
Yes. It is offered on this page.
What is the warranty?
2 years from Custom Autosound.
How much power does it have?
300 watts peak.
USA-630 specifications
- 300 watts peak power (45W x 4 RMS)
- AM/FM stereo tuner
- USB port for flash-drive playback (MP3/WMA/FLAC/WAV)
- Optional Bluetooth via BluKit add-on (sold separately)
- RCA auxiliary input (rear)
- Direct control for optional CD-1 changer
- 4-channel 5V RCA pre-outs
- Digital clock
- 7-color LCD display with dimmer
- Alphanumeric display for USB/iPod/RDS info
- Separate bass and treble; 4-way fader; L/R balance
- 25 presets (15 FM / 10 AM)
- Loudness compensation
- Power antenna lead
- USA/EURO/JAP/AUS/RUS tuner capability
- Custom Autosound 2-year manufacturer warranty
USA-630 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-630 extras
USB and iPod/dock leads share a cable near the antenna jack on many units. RCA jacks on top are typically labeled AUX IN, REAR, and FRONT (line out). Bluetooth requires the optional BluKit unless your package already includes it.
Suggested order for a 1957-1958 Buick Century
- 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 Century
- This radio is sold for the factory Buick Century 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-630 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 Century USA-630
Will this fit my 1957-1958 Buick Century without cutting the dash?
It is built for the original radio opening used on 1957-1958 Buick Century 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-630 supports Bluetooth with the optional BluKit add-on (sold separately).
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.
