Frequently bought together
Description
Custom Autosound's USA series drops into the stock dash opening of a 1973–1987 Chevy and GMC squarebody. No modification to the dash is required, so the truck keeps its original face while you gain modern sources behind it. Four models are offered.
Choose your model
- USA-230 — The more affordable model. Same appearance and features as the 630, without the USB port, iPod dock and CD changer control. Auxiliary input for an iPod, iPhone, satellite radio tuner or anything with a headphone jack, four channel RCA pre-outs, and a digital display with electronic tuner, 16 station presets and a 4-way fader.
- USA-630 — Bezel carrying your vehicle manufacturer's logo and large OEM style push buttons. USB input for MP3 and WMA playback off a flash drive, a dock for your iPod, and a display that shows artist, song and album titles with song navigation from the radio itself. 300 watts peak, four RCA pre-outs and auxiliary inputs. Works with the optional BLUKIT for Bluetooth music streaming and hands-free calling through the vehicle's speakers.
- USA-740 — Bluetooth built in with the microphone included, for streaming and answering calls. 300 watts peak, high 4-volt four channel RCA pre-outs plus a subwoofer RCA pre-out. USB input plays MP3, WMA, FLAC and WAV files. Front mini jack and rear RCA auxiliary inputs. AM/FM RDS tuner showing station, song and artist, with selectable LCD colors and a dimmer. Fully controls the optional CD-1 CD player.
- USA-850 — DigaDial virtual screen with four display choices, including a 1960s analog setting with a red needle gliding across the dial and an all-digital RDS display, in colors you can match to your instrument cluster. 6-volt RCA pre-out and dual subwoofer outputs, bass, treble and midrange control plus DSP EQ settings (Flat, Classic, Pop, Rock). Bluetooth streaming and calls, USB playback of MP3, WMA and FLAC that also charges your phone, rear RCA input, and control of the optional CD-1 player.
Truck compatibility and specs
Fits these trucks
1973–1987
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. Not sure what year your truck is? Decode its VIN.
Specifications
- Part number
- CAS7387
- Brand
- Custom Autosound
- Interior / Exterior
- Interior
- Weight
- 4 kg
Installation
Every USA series radio is designed to fit the stock dash without any modification.
Reviews
Customer reviews
What owners are saying
1
Classic Radio - 73-87 GMC Chevy Squarebody C10 Truck
Common questions
How do I know it fits my truck?
This part is listed for 1973–1987 Chevy Blazer, C10, C20, C30, Jimmy, K10 and others. 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.
How long before it ships?
It is a stock item and leaves our warehouse in 1-3 business days. Transit after that is typically 2-5 business days in the United States. Larger orders can arrive in more than one box on different days.
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.




























Looks very original and fit is perfect..