Tracking down a new or used harness is the easiest solution.
Obtain a pinout diagram for your head unit.
The best way to do this is to obtain a rectangular connector sized to fit your head unit.
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You may be unable to find a connector with the correct pin spacing and the correct number of pins.
While the pin spacing is important, the number of pins isn’t.
you could either use multiple smaller connectors or cut down a large one to fit, whichever works best.
If your car still has its factory harness, there are two ways you might complete the installation.
The first step is to obtain a pinout for your head unit and fabricate a new harness.
Since there is no factory harness in the picture, you have two options to consider.
