The wires are the same, but the pin numbering is reversed in the two links. A white wire for switched +12 sounds odd, but the colors are not always consistent. I try to verify with a meter whenever possible. If the wires are still in the OE fitting, you're safer than if the PO hacked them.

Your connections look correct.

I don't think the permanent +12 uses a 15A fuse, but I wouldn't upgrade from what's currently in there unless it blows with radio use. Fuses 1, 2 and 4 all go to the radio in some fashion, including the illumination.

The wire gauge is also reversed I think. The permanent +12v used to be for the clock, so it was skinny; while the switched +12v was for the music, so it was fat. New HUs reverse this by having a skinny switched wire and a fat permanent wire. The OE wiring should be adequate, but you might want to consider a separate power line and connection if you're going to use the cig lighter to run an iPod or something, too.

You can also connect your power antenna: blue from the new HU to the Bu/Rd or Bk wire in the car that went to the antenna pin on the old radio. That one can be traced pretty easily to the antenna switch, if you're concerned. It'll be dead until connected to the HU, so that's a tougher one to ID.

Funny those wire colours are reversed. But my car was original. Still have the plug so will double check. And with meter too! (ADDED: I did and I had two of the colours reversed - corrected in post above)

Re antenna - Mine has been bent one too many times, so I have it disconnected. I do have a new antenna, so maybe I will at least connect the wire at the radio end, so if I ever get around to it, the antenna will retract. I should be able to find it because it should still have a plug on end.

Thanks for comments!

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Graham
85 300D,72 350SL, 98 E320, Outback 2.5

If it's only the mast that was bent and the motor's still functional, they're pretty cheap (maybe $10-15 usd). Just double-check to verify the toothed or smooth style nylon cord. There are DIYs on that, too.

YAK & Others

Please note that my post about pin assignments on my 85 300D had an error - I have corrected it and added a picture of the connector.

I realized my error when using a meter to double check voltages on the wires.

Thanks Yak for alerting me to this!

BTW - The Alpine CDE-100 is installed. I chose it because it had the most reserved looks befitting an old Benz But it has some neat features for a low end radio - ipod socket on front, but also a USB port. Apparently I can insert a memory stick loaded with MP3s.

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Graham
85 300D,72 350SL, 98 E320, Outback 2.5

Not a bad look... what is that gauge above the HVAC control?

Scale on the guage goes from -## to +##.

I'll bet that it's a amp meter.

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2013 Volkswagen Jetta Hybrid SEL Premium (Sparky)
http://badges.fuelly.com/images/smallsig-us/193500.png

It's a car not a science experiment! Open the throttle!

OK - Three questions about the mystery "gauge"

Actually it is just a magnetic thermometer! My brother used to own a MB dealership and gave me few of those along with some star keyrings many years ago. Still have a few of them.

BTW - It's on crooked - being magnetic it goes where it wants

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Graham
85 300D,72 350SL, 98 E320, Outback 2.5

Today, I decided to try out the USB port. I loaded some mp3s onto a memory stick and arranged them in folders by genre. As soon as the stick is inserted, it starts playing first song on first folder. Easy to switch folders as well as have it play a random mix.

Considering the low price and that it looks OK on the old car, I am really happy with the features. May not be ultimate sound quality, but it sounds OK to me over the beat of the diesel

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Graham
85 300D,72 350SL, 98 E320, Outback 2.5