Uniden BC355N - Manual (Page 20)

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3. Drill the necessary holes and secure the mounting bracket in
place using the screws provided.
CAUTION: do not drill into air bags . do not drill if what is
behind the dashboard is unknown .
4. Mount the scanner to the bracket only after the wiring has
been connected to the rear panel.
Permanently Connecting the Mobile Power Supply
CAUTION: If you are not experienced in connecting
accessories to the vehicle fuse box, please see your
automotive dealer for advice on proper installation .
1. Check the vehicle battery connections to determine which
battery terminal (positive or negative) is grounded to the
engine block or chassis. Most of today’s vehicles use a
negative ground. If your vehicle has a negative ground, follow
Steps 2 and 3. Otherwise, skip to the Caution in Step 3.
2. Connect the RED wire of the DC power cord to the accessory
contact in your vehicle’s +13.8 VDC fuse box.
3. Connect the BLACK wire of the DC power cord to the negative
side of the vehicle (usually the chassis).