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GM Power antenna

All of the info you need to repair your 1996-2002 power antenna. If you have time and dont want to spend $200 on a new antenna, you can repair it for a few bucks.

Drill out all plastic rivets on both covers. Loosen motor so antenna gear drive can spin by hand. This antenna was destroyed because the mast tube was snapped in half. Purchased new tube from mcmastercarr.

This is the drive gear with the mast guide plate and wheel removed.

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Circuit board side. Drill out rivets. You need to replace yellow relay and capacitor. I bought parts to do 2 antennas for $5.

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Replacement relay. This is a dual pole relay that switches the polarity depending if the radio is on or off. These burn out and fail.

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You need one 33mf 50v cap. 5 cents

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Use the original gm antenna and grommet, they seal water out the best. Aftermarket antennas can leak.

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Power connector. Blk=ground. Orange=constant hot.   Green=radio on

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