Toyota Corolla retrofit navigation is generally the choice of Flying song and Kastar in the majority, set navigation, reversing images, dashcam in one piece, directly replace the original car DVD, more simple and beautiful, and easy to use.
The cost is also generally between 2000~3000 yuan, on the size of the original factory is 7 inches, you can choose to install 7 inches or 9 inches, of course, the owner chose 10.2 inches super screen.
The modification method of navigation is as follows: plastic knife, socket wrench and cross, word batch, large towel, gloves, shoe cover or plastic anti-static carpet, clean dishcloth, etc.
Find the car audio power fuse, usually choose blue 10 amperes, radio antenna and GPS antenna installation pay attention to avoid the engine COMPUTER ECU, to prevent interference signals.