Frequently bought together
Description
Custom Autosound's USA series puts modern audio behind a classic radio face in a 1964–1966 Chevrolet or GMC truck. Every model fits the stock dash with no modifications required — the original dash and radio opening stay as they are. Four models are available, so pick the feature set you actually want.
Choose your model
USA-230
The affordable one, with quality electronics and the classic stereo look. It shares the appearance and most of the features of the USA-630, minus the USB port, iPod dock and CD changer control. You get an auxiliary input for an iPod, iPhone, satellite radio tuner or anything with a headphone jack, 4-channel RCA pre-outs, and a digital display with electronic tuner, 16 station presets and a 4-way fader.
USA-630
A bezel with your manufacturer's logo and large OEM-style push-buttons to match the dash. The USB input plays MP3 and WMA files off a flash drive, and there is a dock for an iPod — the digital display shows artist, song and album, and you can navigate tracks from the radio itself. 300 watts peak, four RCA pre-outs for optional amplifiers, and auxiliary inputs for satellite radio, iPhones or any portable player. It works with the optional BLUKIT for Bluetooth streaming and hands-free calls through your speakers.
USA-740
Bluetooth is built in, microphone included, for calls and streaming. 300 watts peak with Hi 4-volt 4-channel RCA pre-outs and a subwoofer RCA pre-out for additional amplifiers. USB plays MP3, WMA, FLAC and WAV; a front mini-jack and rear RCA auxiliary input cover satellite radio, an iPod or any portable player. LCD colors are user selectable with a dimmer so you can match your instrument cluster, and the AM/FM RDS tuner shows station, song and artist. It also fully controls the optional CD-1 CD player.
USA-850
The DigaDial virtual screen gives you a choice of four displays, including a classic '60s analog setting with a red needle gliding across the dial and an all-digital RDS readout with station, song and artist. Multiple colors let you match the cluster. It offers 6-volt RCA pre-out and dual subwoofer outputs, bass, treble and midrange control, DSP EQ settings (Flat, Classic, Pop, Rock), Bluetooth streaming and calls, USB playback of MP3, WMA and FLAC with phone charging, a rear RCA input, and support for the optional CD-1 single CD player.
Installation manuals
- USA-230 installation manual (PDF)
- USA-630 installation manual (PDF)
- USA-630ii installation manual (PDF)
- USA-740 installation manual (PDF)
- USA-850 installation manual (PDF)
Truck compatibility and specs
Fits these trucks
1964–1966
Not sure this is the right part for your truck? Send us your year, make and model and we will confirm the fit before you order.
Specifications
- Part number
- CAS6466
- Brand
- Custom Autosound
- Interior / Exterior
- Interior
- Weight
- 4 kg
Installation
Like all Custom Autosound radios, these fit the stock dash without modifications — the original dash and radio opening are not altered or cut.
Installation manuals for the 230, 630, 630ii, 740 and 850 are linked in the description.
Reviews
Classic Radio - 64-66 GMC Chevy Truck
Common questions
How do I know it fits my truck?
This part is listed for 1964–1966 Chevy and GMC C10, C20, C30, K10, K20 and K30. The full year, make and model list is in the Truck Compatibility tab on this page. If your truck has been modified, or you are between two of the year ranges we list, send us the year, make and model and we will confirm the fit before you order rather than after.
What if it is not right for the truck?
You have 30 days from delivery to return it by mail. Return shipping is on you, and the part needs to come back uninstalled and unmodified - once a panel has been trimmed or welded it cannot go back. Made-to-order items are final sale. The full terms are on our returns page.
Can I install this myself?
It is designed for a home install with ordinary hand tools, and the fitment notes on this page list anything that needs drilling, trimming or welding. Where an installation guide or video exists for the part it is linked in the Installation tab.
Still not sure? Contact us before you order.



























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