I have some semi-vintage stuff around though none installed at the moment: a '70s Pioneer cassette radio, a '70s Becker Grand Prix, a mint '90s Kenwood cassette radio with the motor driven disappearing face and a couple of Blaupunkt Berlins. The Pioneer setup looks to be upper-end and sounded nice but after it ate my favorite Ella Fitzgerald tape I took it out of my '73 Citroen. The Becker came in another Citroen I bought for parts and is still in the car; I assume it works. I was always fascinated by the Blaupunkt Berlin stalk radios that put the controls on a little flexible gooseneck stalk. One of mine is a mid-range unit that came out of a Citroen CX, mediocre shape but I got it really cheap. The other is a mint Berlin 8000, the original stalk radio from the very early '80s and Blaupunkt's absolute TOL car radio. I bought it from a Mercedes service writer who purchased it from a Blaupunkt rep for his own M-B. When he sold the car he removed the radio and sold it to me along with all the manuals and even circuit diagrams.

The Berlin 8000 has four components: the gooseneck stalk with tuning, volume and band controls (AM, FM, SW and LW), the cassette unit that fits in the dash and has the tape controls on it, a radio box with no controls that contains the radio circuitry and must be hidden away, not easy as it's the same size as a regular DIN radio, and the amplifier. One neat feature of the 8000 is that the cassette unit has a small grille on it for a microphone that measures road noise and increases the amplifier volume accordingly if that circuit is engaged. The pushbutton presets on top of the stalk box are like those on some old analog TV sets with remote control: to set the station you pull the button up then rotate it to tune, then push it down once done. I once taught the owner of a nice Maserati Khamsin I met at a car show how to set his presets, he'd had the car for years but it didn't come with the Blaupunkt manual so he'd been using only the seek button! Mostly I see 8000s in '70s-'80s exotics but Porsche did offer it as a special order option for awhile. It was stupidly expensive ($1400 list from Blaupunkt) so few were sold.

Eventually the 8000 may go into the '73 Citroen but it may depend on finding someone who could add an input for a CD or mp3 player.