Chevrolet 1993 S-10 Pickup Owner's Manual page 154

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Comfort Controls & Audio Systems
Fixed Mast Antenna
The fixed mast antenna can withstand most car washes without being
damaged. If the mast should ever become slightly bent, you can straighten it
out by hand. If the mast is badly bent, as it might be by vandals, you should
replace it.
Check every once in a while to be sure the mast is still tiahtened to the
fender.
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