3-Series (E21, E30)Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.
Usually, you need a wiring harness.... this hooks up to the car's existing stereo wiring plugs and gives you all the bare leads, labelled. You get a similar plug with your stereo, with a plug that goes into the back of it, and wires on the other end. Using the guide that comes with the stereo + the guide that comes with the wiring harness, you match the wires. Twist em together, leave lots of slack, and coat in liquid electrical tape, topped with wire caps.
This, of course, assumes your stock wiring is intact. Mine was a bloody mess, so I got Future Shop to do my stereo. I installed my father's unit in his Mazda though. Its the same for most cars, just different harnesses for different makes.
The radio antennna cable is standard, it just hooks right into the back of any unit. On an e30 you've got slack so you won't need an extension.
Have fun with the tunes!
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Changed the car's name, now it's - Roxanne -1985 325e
i got it installed its a kenwood that was in my dads volvo its brand new don't like the fact it lights up red but it will do for now. and the installation kit what i ment is there like a sleeve type of thing that goes in car and it looks it keeps the stereo from moving, but i just used the one that was for my dads volvo and it fit luckily cause like cars have different types of sleeves for different cars
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I just put a head unit in mine, and the only thing you need to keep it in place is that metal sleeve that came with the head unit, if you don't have that, then it won't stay, unless you make-shit something
My one recommendation is to bypass the stock BMW fader. That thing is definitely not designed for today's stereos. If it's set on mid point, about 80% of your stereo is pumping out the back speakers. It's an easy enough fix if you've installed car stereos before.
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