In article , Dave Plowman (News)
wrote:

No - the usual way in a car radio is via bridged output amps if more than
approx 6 watts. Some earlier designs improved on this with an output
transformer.

Not sure about this one, but I believe it is the same or similar as fitted
to BMW cars. E36 has some meaning apparently. The manufacturer is Becker.

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AJL Electronics (G6FGO) Ltd : Satellite and TV aerial systems
http://www.classicmicrocars.co.uk : http://www.ajlelectronics.co.uk