period correct blaupunkt radios, pictures of the differences Options

[dr914@autoatlanta.com]

We have all discussed radios, but thought since I was taking some pics for a customer that I would post. The original blaupunkt frankfurt (writing only about frankfurt now) ordered as an option from the factory (a very rare occurrence) or from the dealer had two different designs over the 70-76 run: 70-12/73 and 1/74-76 (do not get me wrong, the dealer installed later on the earlier and vice versa) but BASICALLY these were the cut offs. The difference was the face and surround. Early had a chrome surround with rounded edges and late had a black surround with square edges. The later looked at the time more modern and less reflective for safety standards.


As you can see two types are displayed along with both the usa and the european faces. The am fm bands are very slightly different but the european will work in the usa. HOWEVER the european face is not correct for any usa car, so if looking for one, if you can get the usa face your 914 would be more correct

[DennisV]

We have all discussed radios, but thought since I was taking some pics for a customer that I would post. The original blaupunkt frankfurt (writing only about frankfurt now) ordered as an option from the factory (a very rare occurrence) or from the dealer had two different designs...As you can see two types are displayed along with both the usa and the european faces.

I am trying to get to the bottom of what would have been original for a 1970 914-6, where the Vehicle Description sheet lists:
M453 Blaupunkt Frankfurt US retractable antenna with loudspeaker & noise suppression

Is M453 the same as model number 7 639 670?

If concerned with correct year, the leading character of serial number would be A (69/70) or B (70/71)?
I'm referencing DerWhites Blaupunkt Radio Identification site, which I realize was originally created for 356 but lists radios through 1975.

Would that radio have had a face plate?
Referring to 914 and 914-6 Porsche, A Restorer's Guide to Authenticity III. The reference photo there shows it with no face plate.

The car currently has:

1. Motoroloa AM/FM in the dash
2. Speakers in footwell
3. Hole in driver front fender where antenna would go

Thanks for clarifying.