Here's what you should consider before you modify your car audio:1. Setting the BudgetLarge or small budget in the specify the audio modification specifications that you will produce.2. Purchase Components that fit with the condition of the carMost people do audio modifications on this car by using good components, but not in accordance with the condition of the car it has.3. Buying the specs that fit with the taste of musicPurchase components or features that support the audio specifications of your music tastes.4. Choosing a Qualified Amplifiers PowerChoose a good and quality Power Amplifier and have a clear brand.5. Install SubwooferWe recommend installing Subwoofer on your car audio modification.6. Replace the Qualified SpeakerFurthermore you can also replace the factory default speakers with speakers that have better quality.7. Gamti Head UnitIf in the sense you need to also be able to replace the head unit with a more leverage.8. Pay attention to CablesInstallation of all cables and car audio components with paik and correct.