Product Description
On the off chance that you could think about any most loved exemplary auto to get, a Chevelle will be the star in your most extravagant fantasies! The greater part of the shiny and lively Chevelle vehicles came furnished with a portion of the first AM radio outlines, a solitary speaker settled in the dash, and a bent gathering contraption. Regardless of the possibility that you can't trust it, this is the very thing that gave auto gatherers like about the Chevelle. The test for the energetic gatherer is keeping up that stock setup with cutting edge innovation sound capacities. Let's be honest, regardless of how perfect your Chevelle looks all things considered, you should have the quality sounds to go in within. When you are cruising down the open interstate with the top down tuning in to a static filled AM station through a solitary speaker, it just makes the emanation leave. You can't get incredibly extraordinary quality sound out of a loud vehicle with matured innovation. Be that as it may, hold up! The splendid group of Custom Autosound alongside the creators at Ken Harrison Radios, have a reasonable arrangement. The USA-740 joins that exemplary look with the contemporary sound.
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
You can believe us when we say that they have gotten their work done to beat desires, and you will find that your keen sound framework is only an online request away. The first Chevelle utilizes a positive ground electrical structure; by far most of the first stereos accessible today just work with a negative ground electrical system. The establishment of a tweaked USA-740 takes out this alongside every other impediment in a split second. The right wiring framework is as of now set up and Custom Autosound makes the transformation as straightforward as changing a light with all potential issues officially dealt with for you. Subsequent to introducing the 740 unit, you can appreciate the delights of immaculate sounds originating from that unique look. It is a custom auto marriage made in reclamation paradise.
A portion of the additional and shrouded comforts include:
Best of all Custom Autosound backs their USA-740 with a multi-year guarantee. You simply need to love an organization that stands behind their item. With respect to the Chevelle gatherer, they all appreciate how the USA-740 has made the top down tune playing life simply that significantly simpler.
Common Questions About the USA-740 IN DASH AM/FM for Chevelle
Do I need to modify the Chevelle dash to install it?
This version is built for the Chevelle and is made to fit the factory radio opening. Custom Autosound says its radios fit without altering or cutting the original dash.
Will it work with a 6-volt system?
Choose your system under Voltage (12 volt and 6 volt) and Ground (Negative and Positive) when you order.
How does the USA-740 handle phone audio and connections?
The AM/FM RDS tuner holds 25 presets (15 FM, 10 AM) and can auto-store the strongest stations. Bluetooth is built in, with a microphone included, so you can stream music and answer calls.
What do I get with the USA-740 in my Chevelle?
There are two auxiliary inputs, a front mini jack and a rear RCA. You can pick from multiple LCD colors to match your gauges, with a dimmer, and it fully controls the optional CD-1 player.
What can the USA-740 do?
The USB port plays MP3, WMA, FLAC and WAV files from a flash drive. Custom Autosound rates it at 300 watts peak, and it adds hi-volt 4-channel RCA pre-outs plus a subwoofer line-out.
Can I add a CD player or Bluetooth?
Check the CD options on this page, which include Single Slave CD.
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 Chevelle
- 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 Chevelle
- This radio is sold for the factory Chevelle 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 Chevelle USA-740
Will this fit my classic Chevelle without cutting the dash?
It is built for the original radio opening used on classic Chevelle 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.
