The best place to find information about stereo equipment installation is at Howto.com. This will give you step by step instructions on doing so yourself.
No, you do not need a professional to install stereo equipments. This is because stereos installation is not very hard. You will require some speaker wires and hook them all up to a receiver. The receiver will then need an audio input from a source.
You can purchase a car stereo installation kit at your local best Buy retail store. You can also order one online from Best Buy or through the Amazon website.
For used car stereo equipment you can try crestonusedcars.com. You can also visit www.mysimon.com.
There are many online stereo equipment dealers. If you wish to go straight to a mass dealer instead of a store here is a great list of them. http://mail.stereo411.com/manu/index.xml?objectID=b384c1f4b8e19e9f3a1ede84df6ac5c7&open=dealers
One can go to Halfords in the UK for car stereo and GPS installation. Their prices start at ´£29.99 for car stereo fitting and also from ´£29.99 for GPS installation.
Stereo hearts is not a product. Stereo hearts is a name of a song. I need more information for what you are refering to. It might be a product with a similar name.
The best dealer is www.higherfi.com. They stock a huge range of products from cheap to expensive.
Car stereo installation kits are widely available at stores such as Best Buy or even the Amazon site. They usually include the owner's manual and the tools needed to install the specified stereo.
You can often get car stereo installation from the company you have bought the stereo off. Failing that, there are some specialist car audio specialists that install these systems, as well as some stores such as Halford's.
Call Crutchfield. They have the installation kit, diagrams and instructions.
http://www.installdr.com/ has a step by step do-it-yourself guide which you might find useful. You can opt for an in depth guide or a beginner guide for installation and wiring of your new car stereo.
go to walmart and pickup the aftermarket stereo installation kit for your vehicle. instructions included.