405 L4-1905cc 1.9L (1989)
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From inside cargo area, open jack/handle access door
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On "S" Models only: Remove the original antenna ground strap and retighten the lower antenna bracket screw.
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Drill a 6.5 mm (1/4") diameter hole 15 mm below the carpeted area, as shown in Figure 1.
Fig. 2
405 Sedan
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Remove the left side trunk spring cover retaining clip
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Prop the trunk open and remove the left side spring
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Remove the left side trunk trim panel
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On "S" and "Mi16" Models only: Remove the original antenna ground strap and retighten the lower antenna bracket screw.
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Drill a 6.5 mm (1/4") hole through the left side trunk spring bracket, as shown in Figure 2.
Fig. 3
405 Sedan and Sportswagon
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Using a piece of emery cloth:
Clean the area directly behind the previously drilled hole to the bare metal. (Figure 1 on Sportswagon, Figure 2 on Sedans)
ON "DL" MODELS ONLY: Clean the area around the top of the antenna aluminum tube as shown in Figure 3.
