84 radio code

I changed the battery & now the radio is deactivated. What is the procedure
to get it going again? Like the previous owner said this is a bit much now
for a twenty year old cassette deck.

HVACGabe wrote:

I changed the battery & now the radio is deactivated. What is the procedure
to get it going again? Like the previous owner said this is a bit much now
for a twenty year old cassette deck.

Look in the manual for your radio and you'll find a code to reactivate
it. Failing that, you'll need to contact a BMW dealer.