Follow along as the sound crew at Cars Etc. Audio in Turlock, California, hooks up a complete audio system by Pioneer. The step-by-step process begins with removing the old stock radio unit with speakers and replacing them with a Pioneer System—deck, speakers, and amplifier that easily plug in from your main wire harness. This quick-and-easy hookup continues with a few soldered wires to the speakers and some RCA jacks that get plugged in under the seat-mounted amplifiers.
Remove the factory head unit.
Install the main wire harness.
Solder all the wires in.
We ran the power cables to the amplifier underneath the door trim.
Remove the factory door speakers.
The amplifier is going to be placed underneath the passenger seat.
Connect the wiring to the amp.
Install the new head unit.
Connect the wiring to the battery.
Make any adjustments that might be needed to the amp.