Toyota 4Runner: Sound Quality is Bad Only when Disc is Played (Volume is Too Low)

Toyota 4Runner Service Manual / Audio / Visual / Telematics / Navigation / Multi Info Display / Navigation System / Sound Quality is Bad Only when Disc is Played (Volume is Too Low)

CAUTION / NOTICE / HINT

NOTICE:

After replacing the navigation receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, XM radio ID registration is necessary.

PROCEDURE

1.	REPLACE DISC AND RECHECK

(a) Replace the disc with a known good one and check that the malfunction disappears.

OK:

Malfunction disappears.

END

REPLACE NAVIGATION RECEIVER ASSEMBLY

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CAUTION / NOTICE / HINT NOTICE: After replacing the navigation receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, XM radio ID registration is necessary. PROCEDURE ...

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