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Text excerpt from page 67 (click to view)
AVIC-S1 PDA Maintenance
5. Remove two screws that secure the speaker, then desperate the speaker. (Figure 4-3)
Figure 4-3 Remove two screws
Reassembly 1. Replace the speaker and secure with two screws. 2. Reconnect the speaker cable to the main board. 3. Make sure the rear cover ASSY is assembly correctly, and secure with four screws. 4. Insert the SD/MMC card back.