Id like to figure out the color and location of a databus wire for a 2004 Corvette

also can anyone confirm that this:

is indeed the VSS wire

And is this information correct

2004 corvette

Reverse Light dk. blue - BCM, pink 32 pin plug, pin C1

Notes: The BCM is in the passenger side footwell, under the carpet.

Speed Sense dk. green/white cluster

I have an 04 Z06 and just finished installing the 700bt, which doesn't have the vss wire - so I can't be much help to you there. BUT - I may be able to help with finding +12v switched accessory power. I know you didn't mention it, but if you don't have that part figured out yet let me know. I may have a few tips (and a few pictures as well) that will save you time and effort.

You will NOT find the spare connector in the passenger side footwell that many people point to for acc power in an '04, because it doesn't exist.

- Mark

Surething...any pictures you could post up will help.

Im using the GMRAP and GMCRV2 so Im sure that the +12 is taken care of..Where did you find the databus?

Id have thought it would already be in the wires that supply the stock HU..

Sorry I've not been able to get back to you very quickly. I'm traveling right now for work, but I'll try to get something for you tonight.

I'm not sure what the databus is that you're referring to - sorry. My 700bt didn't have a wire for databus or the vss signal. The real PITA for me was the switched +12v signal. You will find a constant +12v on the factory radio wiring harness, but if you have the Bose system you WILL NOT find a +12v switched signal there (I'm not sure about the non-Bose though).

Some people were saying to tap into a large, heavy-gauge brown wire coming right off the ignition switch for the switch +12v. I didn't like that idea, so I searched for another source. I eventually found a wire running under the steering column that was easy to get to for the switched +12v.

Like I said, I'll see if I can get more info for you tonight and post some pics up here for you.

Later,

- Mark

hey thats ok...Im still waiting on my DD bezel so Im not going to try the install until it arrives

Orange is the proper color for the databus wire. it should be between a dark green and light blue. That dark green/white is not the VSS. The VSS is DARK GREEN/WHITE (AC) pin 50 OF RED 80pin plug at the PCM. PCM is located above the battery.

Tony thanks..

Orange is the proper color for the databus wire. it should be between a dark green and light blue

You gotta remember....Im an idiot here.....Yes but where wil I find the orange wire. In the photo I posted above I can find three..is it any orange wire?

like i stated it should be between a dark green and light blue wire. if you look at your pic in the center of the big plug you can see it peaking through the others.

Ahhhhh..that pulg....

Alright, sorry for the delay. Here's what I used for the +12v switched accessory power:

Look for a small bundle of wires under the steering column (you have to remove the interior panel that covers it first) - the colors should be grey, purple, pink, sea-green, and yellow. The yellow wire is switched +12v power:

I used a scotchlock connector to tap into it: