Most new vehicles use their factory head unit for integration controls. This means its very difficult and expensive to swap out head unit and keep all your factory functions integrated like: climate control, lighting, and GPS.
A simple way to add amplifiers with also retaining your factory head unit is DS18's V2HL.V2 converter. This converter will splice into your factory head unit or amplifiers output and will convert the signal to RCA output which is necessary for most aftermarket amplifiers.
This unit will provide 2 channel L+R output so you can enjoy all the benefits of your aftermarket sound system.
