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Car Forum / Mercedes-Benz Cars / October 2007

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Becker Grand Prix 612 Electrical Hook-up

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Scott Buchanan - 01 Oct 2007 04:16 GMT
Anybody know where the four wires from the connector on back go to? There is
also a spade connector adjacent to it.  Is this used? The speaker output is
obvious.

Thanks
robrjt - 01 Oct 2007 13:47 GMT
> Anybody know where the four wires from the connector on back go to? There is
> also a spade connector adjacent to it.  Is this used? The speaker output is
> obvious.
>
> Thanks

http://www.beckerautosound.com/612/harness.html
Scott Buchanan - 01 Oct 2007 17:57 GMT
Thank you very much. I got it going. I expected it to sound much better than
it does. I am using speakers from a 1983 300D which look to be in good
shape.

I can't believe that they have a timer to turn on the radio. What practical
application is there for that?

Am I right in that the only bass /treble control is push the button to boost
and press it to not boost?

I guess that I'll be shopping for a new radio. Any suggestions?

Thanks

> > Anybody know where the four wires from the connector on back go to? There is
> > also a spade connector adjacent to it.  Is this used? The speaker output is
[quoted text clipped - 3 lines]
>
> http://www.beckerautosound.com/612/harness.html
Karl - 01 Oct 2007 19:18 GMT
Pressing the tone buttons either way makes bass or treble go in a loop.
What I mean is, the up direction does not just go up.... it goes up, peaks, and then goes down,
bottoms out flat, then goes up, peaks, goes down, etc. You just stop when you are happy.

The timer is a neat option. You can pull off the highway to take a nap. Set the timer for the radio
to come on to wake you up in a few hours.
Or you can do what people did in Norway, Finland etc.:  connect the single blue wire to a relay. The
wire runs to the power antenna to energize it when the radio turns on, it puts out 12V when the
radio is on. Run the relay to the drivers seat heater. Set the timer to a 1/2 hour so before you
leave for work on a cold morning. Radio comes on and seats get warm......

> Thank you very much. I got it going. I expected it to sound much better than
> it does. I am using speakers from a 1983 300D which look to be in good
[quoted text clipped - 19 lines]
> >
> > http://www.beckerautosound.com/612/harness.html
me - 01 Oct 2007 19:30 GMT
> Pressing the tone buttons either way makes bass or treble go in a
> loop.
[quoted text clipped - 14 lines]
> leave for work on a cold morning. Radio comes on and seats get
> warm......

Right, for some reason the Germans love to sleep in their cars. Every
German car I have ever had the seats recline all the way back. OTOH
they *hate* to eat in their cars (no cupholders) :)
Scott Buchanan - 02 Oct 2007 17:57 GMT
I don't have a blue wire. Would this attach to the spade connector next to
the four pin connector?

That seat warmer thing, does it work with no key in the ignition?

> Pressing the tone buttons either way makes bass or treble go in a loop.
> What I mean is, the up direction does not just go up.... it goes up, peaks, and then goes down,
[quoted text clipped - 30 lines]
> > >
> > > http://www.beckerautosound.com/612/harness.html
Karl - 02 Oct 2007 23:51 GMT
If the spade connector is recessed and insulated, yes that would be the 12V out to the power
antenna.
If it is a bare spade on the metal body, that is for ground.

> I don't have a blue wire. Would this attach to the spade connector next to
> the four pin connector?
[quoted text clipped - 47 lines]
> > > >
> > > > http://www.beckerautosound.com/612/harness.html
 
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