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Old 03-02-2013, 09:48 PM
Join Date: Mar 2013
Location: marquettte mi 49855
Posts: 2
Smile 2330, 2340 becker shortwave

nice to see a thread on beckers 2330/2340 I have one also. the 2330 has the khz steps at 9mhz, and the 2340 has every 10khz for am. there should be a dial on the back of the 2330 to change from 9 to 10. (europe 9, us 10) also have the sony. the becker is a good unit, love the sw bands. I have the diagrams for the power plug if any one needs a copy I can fax it over. the plug should be the same for both 2330 and 2340. when I ordered the 2340 from saddle river n j, I told them where I was and how deep the snow was then, they gave me a discount on it! very good radio. joel hall in marquette mi, in the upper pennisula which is not on the map. (part of canada) i see somone is from pontiac, mi, ? that is down state. keep in touch with the 2330 ,40 radio people, thanks for the post, and info. I think you have to have the silverstone unit for the radio, don't know of anything that fits, would like to get one myself.
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Old 03-02-2013, 09:49 PM
Join Date: Mar 2013
Location: marquettte mi 49855
Posts: 2
Smile code 2340 becker mexico

does anyone know how to get a code for a 2340 becker without the serial number? joel in marquette mi
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Old 11-19-2013, 04:24 AM
Registered User
Join Date: Oct 2013
Location: Taiwan
Posts: 9
I've got at my disposal a Becker Mexico 2340 head unit and a Becker Silverstone 2360 disc changer.
It's mounted in a 1995 E280 (european spec) parts car. This car does not have the fader.
It looks to be a dealer installed system. It was very nicely done. Although it's Becker, it doesn't say MB on it, so it's not factory. And if it were installed by an audio shop in Taiwan, they probably wouldn't have installed a Becker. But that's just a guess.

In adapting it to my car I have the advantage that it is still installed in the donor car and all I need to do is decipher how to install it in my car.

My car is a 93 european spec 280E.
I got the car with a sony stereo installed. I guess some of the original plugs and harness have been removed by the installer who mounted the Sony. But it still has the fader and it still works to fade the rear speakers only. I plan to bypass the fader and put a central doorlock switch in its place in the console (also courtesy of the donor car). The central locking switch would be loads more useful than the fader and will appear to be original equipment when I'm done.

Looking behind the radio in the donor car, there seem to be WAY too many wires.

The wires going to the 4 speakers and the signal wire for the antenna are clear enough to understand.

The shielded cable from the CD unit has been adapted to a square plug into the head unit. The two audio wires from the CD have been similarly adapted.

What should be left should be just a few more power wires.
But there's just way, way more than that. There's a huge harness coming in from the cars wiring loom with at least 10 more wires which is integral with the Becker square plugs.
There is nothing like all this wiring in my 93 280E. What is all this spaghetti!
I can't fathom. Could it be an alarm?
For lack of a diagram, I'll have to trace the whole thing out.

If anyone has a schematic showing the pin positions on the unit. That would be a big help.
Also, if anyone has the wiring diagram for the 1995 european spec E280 I would be much obliged!
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Old 11-20-2013, 10:59 PM
Registered User
Join Date: Oct 2013
Location: Taiwan
Posts: 9
I laboriously traced everything out and now have a handle on what all the spaghetti is.

There is a large harness with many wires which snakes forward to parts unknown under the dash.

But I also traced all the needed power, ground and antenna trigger wires coming in from the harness separately.
All these wires go into the connectors and then into the mystery harness and then back out again to the HU.

The rest are the speaker wires. The fronts go more or less directly from the HU through a central connector to the speaker wires. But the rears go from the HU into the mystery harness and apparently back out again but with all different colors from what they go in as.
I can only conclude that there is a separate amp hidden in the dash somewhere that drives the rear speakers. I'll probably have to pull the central console to find it.
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