Connecting both front door switches together will get the dome and entry lights working, but it won't make the headlight buzzer work.

If you take off the lower access panel and look up you will see the buzz box. Getting a wrench on the bolt holding the bracket in is a PITA, but it's not too bad.

-J

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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.