Product Description
Custom Autosound 1958-60 Cadillac USA-740 In Dash AM/FM
The Custom Autosound USA-740 is a premier audio upgrade for 1958-60 Cadillac owners, offering a perfect blend of modern functionality and classic aesthetics. This advanced radio unit is meticulously designed to fit seamlessly into the dashboard of these iconic vehicles, providing contemporary audio features without compromising their vintage appeal.
One of the standout features of the USA-740 is its Bluetooth connectivity. This feature allows drivers to make hands-free phone calls and stream music wirelessly from their smartphones. Whether you prefer listening to your favorite playlists, podcasts, or audiobooks, the USA-740's Bluetooth capability ensures a smooth and enjoyable audio experience, adding a layer of modern convenience to your classic Cadillac.
In addition to Bluetooth, the USA-740 is equipped with a USB port for playing MP3 and WMA files, as well as an auxiliary input for connecting external audio devices. This versatility allows users to access a wide range of audio content from various sources, including USB flash drives and portable media players, making it easy to enjoy your favorite music on the go.
The USA-740 also delivers impressive sound quality, with a 300-watt peak power output that ensures clear and powerful audio. It features four-channel RCA pre-outs, which allow for the connection of external amplifiers to further enhance the sound experience. Users can customize the audio with adjustable bass, treble, fader, and balance controls, ensuring a personalized listening experience that suits their preferences.
Designed to complement the interior of the 1958-60 Cadillac, the USA-740 features period-correct push buttons and knobs that maintain the vehicle's authentic look. This careful attention to detail ensures that the radio unit blends seamlessly with the car's dashboard, preserving its vintage aesthetic. The installation process is straightforward and requires no modifications to the original dashboard, maintaining the vehicle's historical integrity.
The USA-740 also includes an AM/FM tuner with 30 presets (18 FM and 12 AM), providing access to a wide variety of radio stations. The digital clock and LCD display add to the unit's practicality, making it a convenient and stylish addition to any classic Cadillac.
In conclusion, the Custom Autosound USA-740 is an excellent choice for 1958-60 Cadillac owners who want to modernize their car's audio system while preserving its classic style. With Bluetooth connectivity, multiple audio inputs, superior sound quality, and a design that respects the vehicle's original aesthetics, the USA-740 enhances the driving experience by combining modern technology with vintage elegance.
Custom Autosound USA-740 Classic Car Radio With Bluetooth USA-740 Radio with Bluetooth Features:
- AM/FM Radio Bluetooth, USB & Auxiliary Inputs
- Option to Add CD-1, Single CD Player
- Bluetooth is Built Into the Radio
- Fits in your Original Dash Opening Without Cutting
- 3.5mm Aux Input on Front of Radio
- RCA Aux Input On Back
- Change Display Lettering Color
- Digital Tuner
- RDS Song/Artist Information
- 5 Channel RCA Pre-Outs w/ Subwoofer Control
- Separate Bass & Treble Control
- 5 EQ Presets
- Fader and Balance Control
- 15 FM & 10 AM Pre Sets
- Seek/Scan Function
- Back by a 2 Year Warranty from the Manufacturer
1958-60 Cadillac USA-740 In Dash AM/FM: Frequently Asked Questions
Is this radio made specifically for the 1958-60 Cadillac?
This version is built for the 1958-60 Cadillac and is made to fit the factory radio opening. Custom Autosound says its radios fit without altering or cutting the original dash.
Is there a CD or Bluetooth upgrade?
Yes. The options include Single Slave CD.
Why does the order ask about factory air?
The Factory Air option tells us which dash layout your 1958-60 Cadillac has, so pick Yes if it has factory A/C.
What about older positive-ground electrical systems?
The order form has Voltage (12 volt and 6 volt) and Ground (Negative and Positive) options, so set them to match your 1958-60 Cadillac.
What do I get with the USA-740 in my 1958-60 Cadillac?
There are two auxiliary inputs, a front mini jack and a rear RCA. Bluetooth is built in, with a microphone included, so you can stream music and answer calls.
How does the USA-740 handle phone audio and connections?
You can pick from multiple LCD colors to match your gauges, with a dimmer, and it fully controls the optional CD-1 player. The USB port plays MP3, WMA, FLAC and WAV files from a flash drive.
USA-740 specifications
- Bluetooth built in (streaming and hands-free calling)
- 300 watts peak power (45W x 4 RMS, 2-ohm stable)
- AM/FM stereo tuner
- 2 AUX inputs (3.5 mm front and RCA rear)
- USB port
- Direct control for optional CD-1
- 5-channel RCA pre-outs including subwoofer pre-out and control
- 15 FM and 10 AM presets
- 7-color LCD with dimmer; RDS station/song/artist display
- DSP EQ; auto-store presets
- Electronic tuning and volume; separate bass/treble; 4-way fader; L/R balance
- Power antenna lead; digital clock
- USA/EUR/JAP/RUS tuner capability (USA default)
- Custom Autosound 2-year manufacturer warranty
USA-740 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-740 extras
Expect antenna, USB, microphone (Bluetooth), CD-1, and subwoofer RCA connections in addition to front/rear line outs. Use the front 3.5 mm AUX or rear RCA AUX for wired sources.
Suggested order for a 1958-1960 Cadillac
- 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 1958-1960 Cadillac
- This radio is sold for the factory Cadillac opening used in 1958-1960 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-740 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 — 1958-1960 Cadillac USA-740
Will this fit my 1958-1960 Cadillac without cutting the dash?
It is built for the original radio opening used on 1958-1960 Cadillac models. Compare your dash opening and bezel to the product photos. We do not modify dashes in-house.
Does this radio have Bluetooth?
Yes—Bluetooth is built into the USA-740 for streaming and hands-free calling.
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.
