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Reassemble GTM 20 or GDB 50 cable
Both of these vehicle power cables have replaceable fuses. If your device will no longer charge while plugged into your vehicle, the fuse may need to be replaced. The plastic tips of these traffic receiver power cables unscrew to expose the fuse. Replacement fuses can be purchased at your local automotive or electronic parts store. If the plastic or metal assembly pieces are missing, contact customer support.
To put them back together, follow the diagram below: