whant to kbow bluthunit on bmw 545i 2004 manufatured july2004 on 2004 BMW 545i

i purchased car dec 20010 as bmw 545i 2004 model manufacture on july2004 i want to know that do i have nlue thooth unit ican not conect phone , asking passkey which i dont have
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Asked by for the 2004 BMW 545i