My camera system went black also and was related to poor connector contact at the plug in back of the monitor. BTW the wiring to my monitor has the fuses within the wiring. So you may want to look for a series connected fuse.
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2003 34' Dolphin 5342, W22, UP, UPGBrake, F and R Track Bars, Rear IPD sway bar, Koni FSDs, Safe-T-Plus, Scan Gauge II.. 2004 Jeep Liberty, Blue-Ox Adventa..
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