New to me 2015 ML350

Just picked it up today. Truck load of questions but let's start with the easy one, where is the aux jack? I want to connect an Alexa auto but cannot find the aux jack... second question, I can connect my Samsung S20+ to the car but when I try to import contacts, always get " 0 contacts"... Thanks in advance

Just picked it up today. Truck load of questions but let's start with the easy one, where is the aux jack? I want to connect an Alexa auto but cannot find the aux jack... second question, I can connect my Samsung S20+ to the car but when I try to import contacts, always get " 0 contacts"...
Thanks in advance

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