Select your specific body style and options below to see the harnesses that fit your vehicle.
Visit the Research Garage to see what you can do and how to do it. See the Vehicle Profile for your Hummer H3.
Whatever your level of experience, we can help with your installation — and save you even more money. Here's how:
When you buy your new receiver or speakers from us, we'll send you the vehicle-specific disassembly instructions you need for your installation. These detailed, illustrated instructions are created using our own meticulous research and are available for most vehicles.
When you buy your new car stereo from us, you can save up to $50 on the gear you need to install it. In many cases, you’ll actually get the package for free! Installation gear available for most vehicles.
When you buy a set of speakers from us, we'll make sure you get the wiring harnesses and mounting brackets you need for your vehicle. They're available for most vehicles.
Our Virginia-based support specialists will take the time to talk to you through installation snags, troubleshooting, or everyday use. And you can call them toll-free 7 days a week, for the life of everything you buy from us.
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