Product Description
The Firebird Has the Power
It's a great classic with the power to get you where you're going in a hurry. With that much power under the hood, it makes sense to add a powerful radio.
The USA-230 is that radio. It lives up to the powerful reputation of your classic 1970-76 Pontiac Firebird and then some.
The Power Behind the Radio
Everyone knows the power behind the 1970-76 Firebird is its engine. The same goes for the USA-230: its 200 watts deliver sound most other radios can't touch.
A power antenna lead helps the built-in electronic tuner pull in the stations you want.
You also get 16 presets (12 FM, 4 AM). Finally, 4-channel RCA pre-outs, a 1/8-inch aux jack and a 4-way fader let you fine-tune your sound and listen your way.
That's the Power of the USA-230
With features like these, your classic Firebird keeps its tough reputation alive and well.
That's what you want from a top radio like the Custom Autosound USA-230. You look good, your car looks good and your audio sounds good.
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 1970-76 Firebird USA-230 In Dash AM/FM
Will it fit my 1970-76 Firebird without cutting the dash?
This listing is the version made for the 1970-76 Firebird, designed to go into the original dash opening. Custom Autosound says its radios fit without altering or cutting the original dash.
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.
What do I get with the USA-230 in my 1970-76 Firebird?
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. It skips the USB port, iPod dock and CD changer control found on the USA-630, but keeps the same look.
What can I add to my 1970-76 Firebird USA-230 In Dash AM/FM order?
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 an antenna (Hideaway Antenna and Power Antenna).
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 1970-76 Firebird
- 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 1970-76 Firebird
- This radio is sold for the factory Firebird opening used in 1970-76 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 — 1970-76 Firebird USA-230
Will this fit my 1970-76 Firebird without cutting the dash?
It is built for the original radio opening used on 1970-76 Firebird 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.
