Installing an older VW stereo = terrible headache

[krusch42]

So I bought this sweet 99 VW Golf Wolfsburg edition (the mk3 version) a month ago and now I want to install an old stereo I had in my 92 Jetta. The thing is, the connectors aren't the same...

So I tried to hook it up and see what happens; turned out pretty good. The stereo worked right away but it wouldn't turn off when I stopped the engine... I read all about "switched" power, "ignition" power but I can't get my head around this one!

Besides that small problem, I was just wondering how to add an Aux input to the old radio? Are wiring harness adapters really essential?

See images attached to get a better idea...

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Thanks so much! please forgive my total ignorance of the matter; 1st thread ever!

sk.

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