Prepare for the installation.
• If possible, install the SWI-ALP while you are installing the new head unit. Keep in mind you may need to plug in the factory stereo to locate certain wires; therefore do not complete the head unit installation until the SWI-ALP is working properly.
• Plan a general installation location for both the SWI-ALP plug and the control body. Keep in mind that the supplied wire harness is two feet long, and the 1/8″ plug harness is three feet long.
• Use a multimeter or approved measuring device for checking vehicle circuits
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