This product is a 16-pin power harness for Chinese Android navigation/Kenwood, and is a compatible DIY parts. Use it to upgrade your Chinese Android navigation or Kenwood harness. Aren't the harnesses included with Chinese Android navigation systems often too short, have stiff insulation, or have overly thin copper wires? Kenwood's genuine harnesses are quite short. With this DIY coupler, you can use your preferred cables to create a high-end harness yourself. You can also freely set the length of the wiring. If you only use the front speakers, you can connect only the terminals for power and front output. It's better not to connect unused parts for noise reduction. Excess wiring can act as an antenna for noise. Use crimping pliers for small wire open barrel terminals. The crimping width of the open barrel terminals should be: Crimping width of large terminals: 3mm or less Crimping width of small terminals: 2mm or less Otherwise, they cannot be inserted into the coupler (see image). Product Contents: 1 Coupler 2 Large terminals 14 Small terminals Nothing else is included.