Stinger HORIZON10 STH10GMFSTX 10-inch Radio Kit for 2007–2014 Chevy Silverado/GMC Sierra
- 10.1-inch HD screen
- Wireless CarPlay/Android Auto
- Vehicle-specific kit
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2003–2007 GMC Sierra stereo and speaker fit
The 2003–2007 GMC Sierra takes a double-DIN or single-DIN aftermarket stereo with the right dash kit (Metra 99-2011) and wiring harness. DJ Custom Audio in South Gate stocks stereos and speakers that fit and installs them in its own bay, often the same day.
What fits the 2003–2007 GMC Sierra
| Trim / body | Dash opening | Front pillars | Front doors | Rear side panels | Rear doors |
|---|---|---|---|---|---|
| Classic body (2003–2007): Regular Cab | Double DIN or single DIN ✓ Verified | tweeter ✓ Verified | 6.5" ✓ Verified | 4x6" ✓ Verified | – |
| Classic body (2003–2007): Extended Cab | Double DIN or single DIN ✓ Verified | – | 6.5" ✓ Verified | – | 4x6" ✓ Verified |
| Classic body (2003–2007): Crew Cab | Double DIN or single DIN ✓ Verified | – | 6.5" ✓ Verified | – | 6.5" or 6-3/4" ✓ Verified |
In stock in South Gate
Gear for the 2003–2007 GMC Sierra
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JL Audio CF-690-RTG 6x9-inch Custom-Fit Component System for Ram, Toyota and GM
- 150 W RMS
- 36 Hz-19 kHz
- Truck-specific fit
$899.99
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Alpine iLX-W770 6.75-inch Wireless CarPlay Receiver
- Wireless CarPlay/Android Auto
- 2.4 in deep
- 4V preamps
$429.99
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Pioneer DMH-W3000NEX 6.8-inch Wireless CarPlay Receiver
- Wireless CarPlay/Android Auto
- 4V preamps
- 13-band EQ
$479.99
Pick your exact year and trim in Shop by vehicle; Tony confirms the fit before you buy.
Install notes for the 2003–2007 GMC Sierra
- Dash kit and wiring: Metra 99-2011 (single or double DIN); Crutchfield: almost any single or double DIN fits, cut metal support bar for units over 6-3/8 in. deep. Includes 2007 Classic.
- Some trims have factory Bose premium sound, which can wire differently; Tony checks your trim before you buy.
- Rear doors take 6.5" or 6-3/4" speakers, and we stock both sizes.
- Fit changes by trim (Classic body (2003–2007): Regular Cab; Classic body (2003–2007): Extended Cab; Classic body (2003–2007): Crew Cab), so pick your trim in Shop by vehicle.
Local pickup and install in South Gate
Everything is picked up at the shop, Cash & Carry: 8696 Atlantic Ave, South Gate. Buy Now, Pay Later with the Payment Plan (Snap, EasyPay, Synchrony, American First). Approval and terms set by the provider.
Sizes marked "Confirm at the shop" are ones our sources do not agree on yet, or that change by trim or premium audio. Tony checks before you buy. Fit data checked against Crutchfield vehicle research.
Speaker upgrade
More for your GMC Sierra
GMC Sierra speaker upgrade guide
Car guides: Car stereos by budget · 6.5-inch speakers compared · Dash kits and radio interfaces · CarPlay receivers compared
Other GMC Sierra years
- 2025–2026 GMC Sierra · 2019–2024 GMC Sierra · 2014–2018 GMC Sierra · 2007–2013 GMC Sierra · 1999–2002 GMC Sierra · 1995–1998 GMC Sierra
2003–2007 GMC Sierra stereo and speaker fit: questions
Will a double-DIN stereo fit the 2003–2007 GMC Sierra?
Yes. A double-DIN stereo fits with the right dash kit (Metra 99-2011) and wiring harness, which we put in at install.
Does the 2003–2007 GMC Sierra have a premium sound system?
Some trims have factory Bose premium sound, which can wire differently. Tony checks your trim before you buy.
Can DJ Custom Audio install it?
Yes. Bring the 2003–2007 GMC Sierra to 8696 Atlantic Ave, South Gate. Tony confirms the trim and installs in our own bay, often the same day. Text (213) 674-9042 or call (323) 944-7844.