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Post by thae2541 on Mar 25, 2007 20:45:31 GMT -6
Ok, so I took apart the dash Saturday and found my problem. There is no VSS at all going to the radio on the ribbon connector. The solder wire on the ribbon connector for pin B8 does not go to the wire harness. We had to run a wire from the VSS under the kick panel under the dash to the ribbon connector for the radio. We soldered the wire to pin B8 on the ribbon connector. (See picture) The nav radio finally works! The early 2001's without Onstar seem to need this VSS wire hooked up or the radio will not work. The Onstar equipped vehicles are another story. Once Macadamiaman hooks up his Onstar box we'll know for sure if that's why his doesn't update his position.
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Post by macadamiaman on Mar 25, 2007 21:22:42 GMT -6
My goodness! Nice work.
Very strange to see the VSS does so much... a surprise to me!
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Post by premiumV on Mar 26, 2007 5:59:12 GMT -6
Someone has good soldering skills....nice job!
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Post by cherry2002 on Mar 26, 2007 8:14:30 GMT -6
The nav radio finally works! The early 2001's without Onstar seem to need this VSS wire hooked up or the radio will not work. The Onstar equipped vehicles are another story. Once Macadamiaman hooks up his Onstar box we'll know for sure if that's why his doesn't update his position. Great job man! You got it figured out!
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Post by thae2541 on Mar 29, 2007 1:29:25 GMT -6
Thanks... I had help-with which all this could not have been possible!
BTW- We realized that if the car is going over 5 miles\hr, most of the nav features are locked out. To get around this, we installed a switch (Walmart- $4) under the drivers side. Drilled a hole in the vent below the kick panel and ran the wires behind it to the VSS wire. So, now if I (or a passenger) need to input a new address or use all the POI functions, I just need to flip a switch and then flip it back when I am done. If I turn the VSS wire off, I get no update on the nav. You could prob do this to a 2002 or 3 but the 2001's with Onstar are probably harder only due to the fact that I have no idea how the VSS is ran. Any questions just give a shout.
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Post by Buddiemac on Mar 29, 2007 5:30:01 GMT -6
Interesting that the VSS wire was not present on the radio connector. Since the radio supports the feature of automatically changing the volume as a function of Vehicle speed.
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Post by macadamiaman on Apr 2, 2007 23:11:20 GMT -6
Thae would you mind letting me know where the VSS wire is, under the dash? I might have to do this, too. I looked for maybe 20 minutes and there are sooo many boxes, everything's all packed up at random. Though I did find an old speaker set and some hard drives I could put to good use I'll search again... but it's looking like I'll have to go the VSS route - though I might have to anyway, if the OnStar box has nothing to do with it.
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Post by premiumV on Apr 3, 2007 6:01:16 GMT -6
Thae would you mind letting me know where the VSS wire is, under the dash? I might have to do this, too. A funny misinterpretationI looked for maybe 20 minutes and there are sooo many boxes, (yeah, lots of electrical boxes under the dash) everything's all packed up at random (you can say that again). Though I did find an old speaker set (WHAT?, mebby the previous owner stuffed some speakers up there) and some hard drives I could put to good use (HARD DRIVES? No way, OH!! he must be talking about the boxes in his basement) I'll search again... but it's looking like I'll have to go the VSS route - though I might have to anyway, if the OnStar box has nothing to do with it.
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Post by Buddiemac on Apr 3, 2007 19:10:36 GMT -6
I am interested in understanding this VSS signal and how it applies to the radio feature which increases radio volume as vehicle increases speed. Since the 2001 came with this radio feature, I would have guessed that radio harness would have this signal. Does anyone know how the radio receives this input if not on the harness? Did the early 2001s which shipped without onstar also shipped with a different radio that did not support volume adjusting as a function of speed?
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Post by macadamiaman on Apr 4, 2007 0:09:20 GMT -6
haha, sorry No chance I'll ever find that OnStar thing. Just spent hours. Though found many other things that are cool. But the basement is so huge and there are so many boxes, and trash bags, and a lot of it is kinda icky (mice down there), so I gave up... I'm actually considering selling the Aurora GPS. I was unable to sell the old radio for any reasonable sum, and I already have a Magellan 760, a color/voice/touchscreen nav system that has worked fine in the past... meh.
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Post by thae2541 on Apr 4, 2007 6:56:29 GMT -6
WARNING... These are large Size Photos! Sorry, it took so long. You can see where the VSS wire is under the driver kick panel in the 1st pic. The next 2 are close ups. You have to cut open the plastic thing (technical term huh?) that holds all the wires. Once you find the wire all you have to do is scrape the wire covering off and attach the wire you are going to use (I don't remember what gauge I used) and tape it with electrical tape. The wire is run to a switch I installed so that I can turn it off while driving if I have to enter an addy or use the other feature, I don't use it all that often but it's nice to have. The rest of the wire is run under the kick panel and up behind the radio. You have to take out the radio itself in order to be able to solder the wire. You want to make sure that you are on the 'B' side of the connector (It says B1 on right on it) and count 8 over. We did this like 3x to make sure. It helps to have two people at this point. We laid the wire right at the back part of pin B8 and soldered it on. We used enough to ensure that it would stay. As far as how the Speed Compensated Volume works, the only thing I can come up with is the VSS wire runs to the BCM(body control module) and the BCM sends the signal through the Class 2 wiring to the radio. But there is no VSS to the 2001 radio at all per the schematics! Well I hope that answers anyones question... If not, post here or message me. ;D Good luck!
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Post by cherry2002 on Apr 5, 2007 9:29:29 GMT -6
Nice job. The only suggestion I would make is soldering the two wires in your kick panel. 8 months from now when your tape unravels (it always loosens up over time) you are going to be wondering why the system isn't keeping tracking of where you are going Beyond that nice work!!! Be careful soldering on that ribbon cable. (BTW the plastic thing is called flex loom)
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Post by thae2541 on Apr 6, 2007 2:40:17 GMT -6
Thanks Cherry2002. Sometimes I am at a loss of words. Next time I can, I'll get under there and solder it. Good lUck to anyone who does this to their car. It should be easier than for me. I took apart the whole dash not really knowing where everything was.
As always, any questions just ask!
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Post by Buddiemac on Apr 9, 2007 16:51:53 GMT -6
Good information and well documented!! I was surprised that the speed compensated volume did not use the same signal as the GPS unit. Thanks!
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mlear
Aurora Newbie
Posts: 12
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Post by mlear on May 25, 2019 17:26:22 GMT -6
can anyone tell me which wire is the vss under the dash, the pictures don't load anymore. thank you
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