1. Safety: In the process of disassembly and assembly, the original car circuit cannot be damaged or cause a short circuit. When installing the equipment, the circuit cannot be connected incorrectly, and the wrong connection will cause adverse consequences. The installed equipment must have insurance measures to protect it in case of overcurrent, just like installing a time bomb, otherwise it is prone to fire. The audio line must not interfere with the computer and electronic devices in the car, otherwise it will malfunction. It must be installed by professionally trained personnel to ensure safety.
2. Disassembly and assembly technology: In the process of refitting the audio, first remove the original car audio. Whether it will be disassembled or not is the fundamental problem of the modification. Because the surface of the instrument panel cannot see the screws, it is necessary to pry off the decorative parts. See the screws, the disassembly operation process requires professional and strict, otherwise it will be easy to dismantle. In the second step, you need to wire and replace speakers, you must disassemble the door panel, door side, instrument panel, seat, decorative panel, etc. During the disassembly process, you must have special tools and keep the original intact, otherwise it will be unsightly And the sealing is not good to produce noise.
3. Whether the product is qualified: There are many counterfeit brand-name equipment on the market, so you must distinguish it when you buy it, otherwise there will be endless troubles. Some low-priced equipment does not show quality problems from the appearance, but the internal components are of poor quality, and the circuit design does not meet the standards. The sound quality of this equipment is not good, and it is prone to failure. Even produce nature. You must go to the store authorized by the manufacturer to buy it before you can use it with confidence.
4. What is the sound quality effect; if you don’t buy a brand-name product, it must be good. The varieties of brand-name manufacturers are also divided into high, medium and low grades, and the grades you buy may not be good. The most fundamental thing is to have a professional system to match, install and debug , In order to produce good results. It is not a simple matter of randomly connecting several lines. The sound field positioning and phase cannot be wrong, otherwise the effect will be unimaginable.
5. Consider after-sales service: Car audio is used in sports, and the environment is bad such as: temperature, humidity, vibration, dust, etc., which can easily cause various failures of the audio. Maintenance, warranty and repair are very important issues. Buy parallel imports, refurbishment and clearance products, stealing machines, etc. at a low price. The warranty card is fake and there is no after-sales service. If it is damaged, it needs repairing or scrapping. Is it worth it? Now the equipment sold in specialty stores is not necessarily expensive. There are many cost-effective equipment that can enjoy good after-sales service. Why not do it.
6. Installation environment: Some small shops are installed in the open air. The work clothes of the staff are very dirty, and the sound system is installed, but the interior and exterior of the car are dirty. It is a good thing to buy a new car and change the audio, but it brings many bad consequences, which is a painful thing.
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