PriceGrabber Review
User Rating: 3.8 Rate It
PriceGrabber is an industry innovator in the price comparison shopping market, adding new technologies to make online shopping an informed and pleasurable experience. PriceGrabber helps you find the best product for your needs by including merchant ratings, product pictures and specifications, and pricing information that factors in applicable sales tax and shipping based on where you live.

Shopping.com Review
User Rating: 3.7 Rate It
With Shopping.com, price comparison shopping for the best prices on electronics products like 2-way radios, camcorders, cameras, car audio, clock radios, digital cameras, DVD players, fax machines, gadgets, GPS receivers, home audio, home theater, stereo systems, MP3 players, portable audio, phones and answering machines, headphones, radar detectors, TVs and VCRs is easy.

BizRate.com
User Rating: 3.5 Rate It
Compare prices on millions of products from thousands of stores with BizRate.com. Compare products based on consumer reviews and merchants based on consumer ratings and on-time delivery to shop with confidence. Quickly search for the lowest prices on car electronics by keyword or price range.

Froogle
User Rating: 4.0 Rate It
Froogle is a shopping search engine from Google that is still in Beta. Froogle has many features and qualities that set it apart from other comparison shopping services, including that it allows for both local and online price comparison. It is also incredibly comprehensive, which makes it the best bet when you are searching for less common items.

mySimon Review
User Rating: 3.2 Rate It
This site helps you find the lowest prices by price comparison shopping for millions of products at thousands of online stores. This service provides relevant and comprehensive information and is fast, easy to use, and free.

Abt Electronics
User Rating: 4.0 Rate It
Abt Electronics began in 1938, and today you can enjoy the convenience of shopping through AbtElectronics.com online. They sell mobile electronics, home appliances, electronics, computers and more. They sell car electronics products in categories including automotive security, car navigation, GPS systems, mobile accessories, mobile audio, mobile video and radar detectors.

JC Whitney
User Rating: 2.9 Rate It
JCWhitney.com is your source for everything automotive. Find great prices on a huge selection of auto parts and accessories for your car, truck, van, SUV, motorcycle, ATV, RV or motorhome. They have cheap prices on all kinds of aftermarket auto parts, accessories, tools, guages, sound systems, electronics, GPS navigation systems, and more.

Crutchfield
User Rating: 3.3 Rate It
This company specializes in car audio, but also has a wide selection of home electronics and accessories. Over the past 25 years, millions of people have trusted Crutchfield to meet their consumer electronics needs. They have an awesome total satisfaction guarantee with free return shipping and free technical support for life.

Vanns.com
User Rating: 3.1 Rate It
Vanns.com is a leading online consumer electronics retailer that features quality brand name products. They provide quality and value along with great customer service. Plus, an added discount is that there is no sales tax. They provide real-time inventory status, online order tracking and hassle free returns and exchanges.