I have an 18 Tacoma with the JBL sound system and I can't sink my phones GPS to speak when the phone is linked to the radio via bluetooth Thanks
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Like @texasred said, it should be fine as long as you have the Bluetooth selected on your head unit and it’ll go through the speakers. You have the Navigation on your head unit if you have JBL because you have Entune premium. If you would rather just use your phone and can’t get it to link through the speakers just disconnect your phone and let it speak through the phone speaker.