Product Description
Riviera brand cars have become icons in the automotive world. And real classic car collectors know that very well. Automatically, you will discover that many Riviera collectors will want their cars to become a showroom replica of how they rolled off of the assembly line so many years before. When collectors sit inside that restored Riviera, the first thing they do is reach for the radio. Without the time stamped radio unit in place, the restoration process would certainly fall short. With that being said, the same allure that draws collectors to the Riviera cars themselves, also catches collector’s eyes when we consider the classic radios. The USA-740 has become the number one go to component for that classic look.
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
The attraction given to the original style radios, is synonymous with the attention to detain that is engrained in any collector. Yet there is a limit. Perhaps even the most diehard and detailed oriented collector may not go as far as reproducing the AMX 8 Track players. But the USA-740 offers some appealing options for those who are seeking a suitable option. With this unit collectors can get the simplistic original styling with that indistinguishable face plate along with hidden modern amenities.
Riviera cars are surely classic favorite, and are becoming harder to find and fully intact. There was a time when you were forced to find a car already restored because there were no project cars left in the market. When it came to stereo systems, collectors had to settle with a non-operating unit in order to maintain that classic look. Now collectors do not have to have the same struggles when it comes to replacing those original radio units. The Custom Autosound USA-740 offers everything you will need and desire for your classic Riviera. Regardless of the make, the USA-740 has a customized unit that is ready to install into your dashboard. The Riviera brand symbolizes a time in our country when owner took pride in their cars and owners were revered and envied. Over time roads became inundated with infinite makes and models of all kinds. The same reverence for the classic Riviera has resurfaced and just as appealing as these cars have become, so have the radio units for the smart collector. The Custom Autosound USA-740 Cord unit gives the car that added touch that makes these vehicles complete. Now the enigmatic presence of the outside meets the modern technology of the inside, and you too become complete.
USA-740 IN DASH AM/FM for Riviera FAQ
Will it fit my Riviera without cutting the dash?
This listing is the version made for the Riviera, designed to go into the original dash 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.
Does it matter if my Riviera has factory air?
Select Yes or No under Factory Air so we send the correct setup for your Riviera's 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 else should I know about the USA-740?
There are two auxiliary inputs, a front mini jack and a rear RCA. Custom Autosound rates it at 300 watts peak, and it adds hi-volt 4-channel RCA pre-outs plus a subwoofer line-out.
How does the USA-740 handle phone audio and connections?
The USB port plays MP3, WMA, FLAC and WAV files from a flash drive. Bluetooth is built in, with a microphone included, so you can stream music and answer calls.
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 classic Riviera
- 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 Riviera
- This radio is sold for the factory Riviera 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-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 — classic Riviera USA-740
Will this fit my classic Riviera without cutting the dash?
It is built for the original radio opening used on classic Riviera 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.
