NEED help ASAP Stereo wiring harness 1989

[wheelerdealer]

I was going to put a new stereo in my car and everyone tells me i have to cut the factory wiring harness? I dont want to do this.

1989 525i

And how to wire it? They something about you dont hook up no grounds. lol

[swenpro]

"They something about you dont hook up no grounds. lol"

Ahhh, where's Scott H when you need him?

[Tiger]

You get a BMW adapter where you buy the head unit... Circuit City... Best Buy, etc.

[wheelerdealer]

the thing i dont get is stereo shops say just cut and hard wire everything

[Tiger]

No... absolutely not. It is only a $10 adapter... very common to get. Crutchfield has it too.

[Qube]

No... absolutely not. It is only a $10 adapter... very common to get. Crutchfield has it too.

Tiger, are you telling me that Crutchfield has an adapter for THIS mess?



THIS is what's on the old hardwired ones... If they do, it's well worth the $10.

[brosher]

I called around all the local installers and found a harness adapter for $15. It is worth every penny. You will also likely need an antenna adapter, or at least my 95 needs one. I just installed a head unit and I did not get any sound when the negative speaker wires were connected. Connect the ground to the head unit but tape off the speaker ground wires. Good luck!

Here is the what the adapter looks like:
http://www.crutchfield.com/S-VVIZXfF...00&I=120709195

[Qube]

1989 is hard wired. You have to cut the wiring, or you'll pull your hair out trying to find a harness of ANY sort for it.

Please do a search... this was most certainly posted before. I know because I made several posts about wiring specs as well...

For example:
http://www.bimmer.info/forum/search.php?searchid=223365
http://www.bimmer.info/forum/search.php?searchid=223368
http://bmwe34.net/e34main/upgrade/stereo_wiring.htm
http://bmwe34.net/E34main.htm --> Upgrades --> Stereo
...there are lots more

Nothing personal, but...

[wheelerdealer]

Ummm ya i did a search and everyone has a remark about it, with no real help. I looked the pages you said and i dont have none of them color wires.

blue/black
yellow/black

yellow \____ square white connector
white /

yellow wire with round plug
blue wire with round plug

white wire with a spade connector

brown/orange with ring connector

black/white wite with blue connector

[Qube]

I did the same thing as you did.... and figure it out.

It's quite simple, really.

Use this thread:
http://www.bimmer.info/forum/showthr...t=radio+wiring

...and the diagram from bmwe34.net. You'll be able to piece together which wire goes with what.

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EDIT: Let me hold your hand a bit more... apparently you did not go through the bmwe34.net site. http://bmwe34.net/e34main/Upgrade/Stereo_radio.htm
The site is immensely useful. Don't discount it again or we'll have to slap ya!