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Page 11
Connecting to Ground Power
Black Wire - Ground
• With the vehicle’s engine OFF, attach the Black Wire directly to a chassis
ground point or to a ground line (chassis ground) by splicing directly to
a ground lead or by using a wire tap (recommended).
Red Wire - Continuous Power
• With the vehicle’s engine OFF, use the voltmeter to locate a 12-volt Battery
lead and attach the Red Wire by splicing directly to the lead or by using
a wire tap (recommended). If attaching to a fused lead or using an inline fuse
(not necessary), verify that it is at least 5 amps.
• Be careful not to confuse a “Retained Accessory Power (RAP)” line with a true
Continuous Power line (12 volt, always ON line).
• To determine a true Continuous Power source:
1) Ensure the Driver Door is OPEN
2) Select a wire
3) With key OFF, use a voltmeter to measure the DC voltage on the wire. It
should show 12 VDC or higher.
Installation Tip:
Please ensure that the Driver Door is OPEN during the ENTIRE installation process.