Use the provided blue cable (just plug in the cigarette lighter to turn on the power) to get the power from the ignition switch to ensure that there is a 12-volt power supply. If you ignore the extra wires, your radio won't turn on.
The harness is color coded to match the color of the wires in your factory. Use silica gel adhesive to prevent internal terminals from moving and increase thermal shrinkage to achieve good measurement results. This is a universal plug, which is suitable for many different models of this brand. Before you design and buy it, be sure to take a closer look at your radio jack and my photos to see if this plug is suitable for your 16-pin Pioneer aftermarket radio.
This is a 16-PIN harness power plug. Allow the use of existing factory wiring and connectors to install aftermarket hosts.