Vintage Blaupunkt Radio Wiring Diagram

[Vintageblau.com]

I'm often asked about the proper wiring for the typical Blaupunkt radio in the early BMW models and am including a diagram showing the proper locations for all electrical wiring. Earlier and later radios have a slightly different configuration. If anyone has specific question please contact me through PM or through our website: Vintageblau.com

 

I'm often asked about the proper wiring for the typical Blaupunkt radio in the early BMW models and am including a diagram showing the proper locations for all electrical wiring. Earlier and later radios have a slightly different configuration. If anyone has specific questions please contact me through PM or through our website: Vintageblau.com

 

The wiring process for a vintage Blaupunkt radio is generally a simple procedure. Besides the antenna wire and speaker cables, the only other wires are the positive and negative wires, possibly an automatic antenna cable if it applies to your vehicle model. Where these wires attach to Blaupunkt radios changed over the years though. 

 

No matter what model vintage radio you install, it is important to ground it properly in order to ensure its proper function. Bad grounding will result in sub par performance and a lack of reception. For the typical 1970's models the rear tab (as shown in the image below as #2) is designated for attaching the ground wire. The positive (hot) wire should be attached at the +12V tab and an inline fuse is highly recommended as well. 

 

Speakers:

 

The 1970's Blaupunkt radio shown in the diagram is a mono Porsche 911 Frankfurt unit. The two speaker holes (as shown in the diagram as #7) take typical banana/push plugs. We recommend using our original speaker plugs for correct fitment. These mono output radios are designed to run either one or two speakers. Speakers should be 8 ohm through the late 1970's. Using 4 ohm speakers will damage the radio over time. Speaker wattage should be kept relatively low and factory specs are always best. For those customers requiring a more powerful system, an amplifier can be installed, allowing for more powerful speaker installation. If you have any questions regarding the specifics for your radio application, just let us know. We are always happy to help.

 

The speaker plugs for a vintage Blaupunkt radio can be one of two versions. The version with two equal round pins were used throughout the 50's, 60's and early 1970's. About 1974 these were changed to the "pin and spade" type that only allow you to insert the plug one way, thus specifying positive and negative output. Mono radios use one plug, while stereo units require two.

 

Most Blaupunkt radios beginning about 1965 have an input port commonly referred to as the "DIN input". These input ports allow for external devises such as an external tape player, external short wave receiver or an external traffic decoder to easily be plugged into your vehicles stereo system. While a chrome front shortwave receiver or original equipment external tape may have a decorative quality as an optional accessory to the dash of a vintage car, they generally aren't very useful these days. 

 

The good news is that this port can be used for modern external devices as well such as MP3 players, iPod's, tablets and cell-phones. This allows you to listen to music from your external device through your vintage cars vintage stereo system. Just pull out the rear white cap and plug in the external device cable. Then plug in the small male end into your cell-phones headphone jack, you can now listen to your stored music. 

 

The cables we sell never have to be unplugged from the back of the radios and can stay in place permanently. Other companies only provide cables that have to be unplugged from the rear of the radio when not in use, which is seriously inconvenient. We also have our cables custom made with superior materials in regards to the plugs and wiring.

 

For further information, restored radios and radio parts please contact us: Vintageblau.com

 

 

 

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[Simeon]

Thanks for the write up. Much appreciated. I would love to know more about the 'traffic decoder' accessory and how it worked. 

[Driv3r]

Thanks for the info. Do you only have parts/info on Blaupunkt radios? I have Becker.

[Mike Self]

You might also mention that Blaupunkts up until the mid 60s or so also had either plugs or switches on the back side that allowed one to change voltage from six (VWs, Porsches and 66-67 1600s) to twelve, and the polarity from negative to positive ground (for British cars).  A nifty feature.  My early-mid 60s 3 band Blaupunkt has that feature--means I can use it in my 6v 4CV.

 

mike

[Vintageblau.com]

We certainly work on/repair Beckers, but do not stock parts, since the Becker radios mostly made their way into Mercedes models and thus have a limited vehicle application.

[joebarthlow]

rookie question, where do I connect the other end of the positive to? Recommended wire/connector?

 

thanks

[golftii]

the ca. 1972 Frankfurt has 2 DIN connections, a 7 pin on left and 6 pin on right.
I know the 7 pin is for input like the Becker outboard cassette deck I have. 

What is the 6 pin on the right for? is is also an input, just a different connector? or something else like an output?

I haven't been able to find info on this config, despite "google" help.

 

In particular, looking to install an amplifier and wondering if this 6 pin DIN can serve that purpose or if I'm stuck connecting amp through powered speaker leads.

 

 

[golftii]

answering my own question and might help others:

this is for the F-series Frankfurt models, produced around 1974

the right hand DIN 6 pin connection is for the Traffic Broadcast Decoder (obsolete) connection AKA "Verkehrsrundfunkdecoder" or VRF

[Robert Kyle]

i've got this old blaupunkt that came in the trunk of my 02.

 

I noticed it has TWO DIN plugs in the back.  Any idea what that 2nd, 8-pin one is for?

 

 

[Conserv]

21 hours ago, Robert Kyle said:

i've got this old blaupunkt that came in the trunk of my 02.

 

I noticed it has TWO DIN plugs in the back.  Any idea what that 2nd, 8-pin one is for?

 

 

Robert,

 

Good question. I don’t know. Someone here will have a factory Owner’s Manual, which should identify both DIN jacks. The jacks were originally covered by plastic caps, so were less... noticeable. External cassette deck? Shortwave receiver? 1975 Bluetooth prototype? ?

 

Your radio appears to be a 1975 model Frankfurt Stereo US, most likely manufactured in 1975 (G prefix) or 1976 (H prefix). If it retains its factory labels, this will all be shown.

 

Below, another example, showing the factory labels and plastic jack caps (the left cap appears to have some integrated jumpers).

 

Best regards,

 

Steve

 

[Steve Tochi]

Yeah, Steve is correct, plug is for accessory such as cassette player as pictured on this G model.  I also have an F model with dual ports but they're located towards the left side.  

Edited December 24, 2020 by Steve Tochi
sp

[fjord-tii]

Anyone know which pins of the DIN connector are inputs, I assume there would be Left and Right hot plus one ground?

[Klutch Satellite]

How do you select the the external din connector source from the front, is it from one of the buttons (LMKUU)?

Thanks, Aaron

[Klutch Satellite]

Actually now that I look at it, is it automatic when something is plugged in to it?

[Conserv]

48 minutes ago, Klutch Satellite said:

Actually now that I look at it, is it automatic when something is plugged in to it?

Yes, it just happens when you plug something into the jack.

 

Regards,

 

Steve