Simply put whenever you want. This wiring diagram shows how a full blown car audio system upgrade gets wired in a car.
Pac Connecting Cars And Technology Your Total Installation
Adding amplifier to car stereo. Mount them up high to avoid damage and maximize airflow. The amp can also interfere with the stereos amfm reception. When do you need to add an amplifier to your factory system. If youre fitting subwoofer speakers in a box mounting the amplifier on the side of the box is a good option. The best way to connect it to a factory system is to tap into the stereos speaker outputs for the amps input signal. You can also consider adding a subwoofer amplifier to your system paired with a nice subwoofer to bring the bass presence up to your liking.
This will prevent electrical noise from entering your system and spoiling your music. Also an amplifier will give you the flexibility to addremove different channels to your cars system whenever you decide that you want a change. Generally speaking you should consider adding an amplifier whenever the clarity andor volume inst to your liking. Often times amplifiers come with this part built in but. All of this assumes you have an aftermarket stereo with preamp outputs. Run these wires the turn on wire and the rca cable down the opposite side of the car from the power wire.
Do not bolt your amplifier directly to your cars metal chassis thats inviting noise problems like ground loops which hum or buzz. Plug the rca cables into the appropriate rca outputs on your stereo. A line output convertor is going to convert the sound from one of your car stereos speakers to a signal that an amplifier can understand. The system depicted includes new speakers an aftermarket receiver a 4 channel amp for the front and rear pairs of full range speakers and a mono amp for a subwoofer. The extra gear youll need for wiring the amps includes. The amp should be at least three feet from the stereo to avoid noise radiated from the vehicles electrical system.
Usually youll be installing a 4 channel amplifier with speaker level inputs. A dual amplifier wiring kit. The next thing to consider. Adding an amplifier will allow you to take control of your sound without having to purchase a brand new stereo player. Then send the amps outputs back to the stereos harness and on to the speakers through the factory wiring.