The proportion of speakers mp3 player in automotive electronics products is growingNow the proportion of in automotive electronics products is growing, nearly 40% of new car owners have demand to install. Therefore, production and OEM DVD navigation products emerge, but the difference in the quality of the products from different is more than what you can imagine. Since the audio speakers of many DVD products will emit squeaks once being loaded on the car when you step on the throttle, which is also very poor in sound and image. Therefore, we remind you focusing on the following aspects when you buy or install products:1. sound qualityDVD is used to play music, so whether the sound quality is good or bad is very important. Therefore, you must ask how much "V" is the DVD player output before you buy DVD, or compare the sound quality of this machine with other DVD players. If the sound quality of the DVD player can compete that of the CD player, then the price will of course not be cheap.2.images and DVD player proportioningDVD screen has simulation screen and high-definition digital screen. The analog screen pixel is general 240 * 240 or 480 * 240 pixel, and HD screen is generally 800 * 480 pixel or higher. Good DVD uses dual optical drive, which is DVD and CD two kinds of wireless speakers for pc.

3.navigation accuracy and ease of useGood DVD manufacturers will apply better navigation software, the poor DVD navigation is easy to crash or have slow navigation during the navigation process, navigation accuracy is relatively poor. Good vw navigation dvd uses "dual-core" mode, using two separate CPU processing system, the two systems do not interfere with all in one karaoke systems, so that the navigation speed is fast, which is high accuracy and easy to use.Determine whether the size of the is suitable for your carIn addition, you need to determine whether the size of the is suitable for your car. From panel size, there is conventional 1DIN and 2DIN two categories, generally small vehicles use 1DIN size products, which occupy a standard CASE. 2DIN size device panel is relatively large, many products look more luxurious, which is used for the commercial vehicle and other medium vehicles. Some cars need to transform if you want to install 2DIN size equipment. We recommend that the small vehicle users try to use the 1DIN standard size equipment, because it will be relatively easy to install and replace the original deck.