John541

I finally got it all working. It was in fact the sky blue wire, at pin 9 in the largest radio harness that I needed for vss. The harness adapter I had bought had the radio ground hooked up to this wire. I don't know why in the world they did that or how it was working as a ground but whatever. I clipped the black wire from the aftermarket harness and attached the vss to it, then I took all the grounds to some metal behind the HU. Everything works great. I have visual and audible indicaters on speed pulse and the speedometer seems to be right on. I never did unwind the antennas and everything s

ok, forget the one about the nav being off and all. I finally got around to reading the part in the manual that instructs to reset the unit after adding accesories and it is dead on now. Guess it helps to read the manual sometimes. Sorry for the slip

another one, sorry, I'm dying to get this wrapped up. If I take a chance and try the sky blue wire in the radio harness at pin 9 for the vss and it turns out it is a ground, what potential damage am I looking at? I followed links here to other forums and everything I can find suggests this should be the wire.

Another question for you all. I had originally installed the D3 without connecting the back-up, vss, reverse or any accesories but the ipod connector and used it that way for months. I never noticed any real issues with the nav when I used it. I've now gone into installing eveything else and rolled up an tied everything down to clean up the wires, In doing this I wound up the gps antenna and sirius antenna together and tied them down. I now see my nav is way off and the speedometer in the dynamics screen jumps around. I originally thought it may be just becasue it's been in the garage when I c

Thank You for your advice. I'm not discounting it at all and may end up having to go that route but I really hope not to and would like to ask one thing about it. I've seen other posts suggest that if my stock stereo would increase and decrease in volume with speed, then it does indeed have that connection to the radio. My truck did have that so I thought it must be there somewhere? have you any knowledge or seen any posts of maybe a different color wire? Do you think there's any way it might be the lt. blue one that the aftermarket harness has hooked to ground? Thanks for all your help.

Thanks, I actually did that first and it never changed from 0 so I thought it maybe didn't mean anything and then I did it with the vehicle dynamics up and thought that was a more obvious indication that something wasn't right and I only mentioned that in my post. Do you think this wiring harness I bought to connect the AVIC-D3 to my factory harness is messed up? Every post I can find about the Xterra VSS anywhere (and some pathfinders and some frontiers which are sometimes said to be the same and sometimes not) says that I should have a light blue wire in the factory radio harness. Unfortunat

ok, so pc 3 pin wires were no go. It seemed they slid in and held ok but they just pop out when trying to put the deck away and screw in. So, I'll have to just tap them in. Also, I'm dying on the vss. I tried the open sorta light blue wire and no joy. I took a drive with the vehicle dynamics screen on and the speedometer on there was just bouncing around 12, 38, 122. Does thin mean right wire but bad connection or needs some calibration or is it just wrong wire? Please help. Thank You

I think I got the SWI-PS worked out. I hope it works. If it might help someone else, I got into my computer parts and pulled the wires from a 3 pin connector and they seem to slide nicely into the factory harness I need to connect to. I just hope they hold. I might tape it all up also, not sure. I've attached a picture, lovely soldering ehh? I was having trouble getting the 2 resistors soldered to the one wire so I shoved them all in a butt connector with the plastic trimmed back and filled it with solder. I hope it all stays. Would anyone offer a thumbs up or down on this solution before I pu

I have figured out from other posts that I do need the smaller harness with 3 wires for the SWI-PS. How are people connecting these? I try not to mess with factory harnesses because I might put the old stereo back in some day but I cannot figure out how to jam anything in the tiny holes that might stay and there isn't much room to tap into all 3 wires. I still can't figure out hpw the resistors connect to all this. Any suggestions please? Thank You

Can anyone help me be certain I get the correct wire for the vss. I've read many posts and it appears I should have a lt. blue wire in the harness from the factory Fosgate stereo. I am having difficulty finding this though. I installed with a wiring harness by Best (BHA7550) that utilized the two bigger harnesses unplugged from the factory setup and left the two smaller ones hangin. The big harness that has a lt. blue wire has it connected to the black ground wire by the Best Harness. Everything seems to work fine so far but I am just now trying to finalize install. Once I got sound and ipod f