adding Nav to a GXP

[sasquatch094]

Bought a used nav unit from another gxp to put in my 2008 GXP. Both came with XM radio.. I pulled my radio cdplayer out and it only had 2 wiring plugs going into it.
The navigation unit had the same 2 plugs then 2 more plugs, 1 grey plug with only one black wire coming out of it, the other plug has 2 pink wires and a white plug...
I dont have any other wiring behind my radio for the nav to work. Ive called the dealer and said you cant get any other wiring for the car. True or false? ive looked at tons of diagrams on GMpartsdirect but it doesnt show part numbers.


edit
Found some links for people if you need help..

http://ls1tech.com/forums/ls4-performance/1508019-factory-nav-experts-step-inside-please.html
http://www.clubgp.com/newforum/tm.as...key=&language=
http://www.clubgp.com/newforum/tm.as...de=&s=#3461585
http://www.clubgp.com/newforum/tm.as...de=&s=#3779365
http://www.clubgp.com/newforum/tm.as...mode=1&smode=1

i still cant find the GPS antenna part number or anything like that

[sasquatch094]

antenna part number 10354745... i guess ill figure the thread out by myself.. lol

[jteske88]

Well lets see here, there is GPS, xm, radio antenna, power and other wires. I know one of mine is not used. Possibly for cd changer?-@

[mrlogic1234]

Where did you find your nav radio?

Sent from my Samsung Galaxy Note II

[jteske88]

let see here, i found mine in the car when i bought it, one of the few to have it stock.

[sasquatch094]

Bought it off this site from a fellow member.

Going to get my new key fobs programmed and radio unlocked and my TPMS reset Wednesday. then hopefully ill be done with this thing. Im super stoked about it, but i hate going to the dealer or any place to get work done. (98% of the work, i do it all, the 2% consists on this bull****, alignments and window tinting.. lol

[sasquatch094]

05 06 07 08 09 Corvette C6 Touchscreen GPS Navigation Unit Part 15791220 DVD | eBay

[jteske88]

Yeah I had more issues when I went to get my fobs programmed, the reciever was junk so I'm gonna just install Alarm.

[2003 SSEi]

The white plug with the 2 pink wires is for the Voice Command, thoes 2 wires go to the onstar module, The other grey plug is for the Nav Antenna

[sasquatch094]

Okay, so i got the Nav unlocked from an auto shop, got the key fobs programmed, got a new TPMS since the old one was bad...

Now i cant find the VSS wire inside the airbox. I took apart the first 53pin connector finding no wires going to the 22pin.. Im stuck. I added the D pin for the connector in the back of the nav, but now i dont know where to hook up the VSS> i tried looking at the speedo wiring, but there wasnt any green ones connected to that.. wthh????

[jteske88]

Most ppl tap the CSS at the strut tower location

[gilroy222]

Are the corvette Navs identical to the pontiac ones? and do you lose the date in the DIC like you would with an aftermarket deck?

[mrlogic1234]

Are the corvette Navs identical to the pontiac ones? and do you lose the date in the DIC like you would with an aftermarket deck?

Yes they are the same unit. I was told the symbol at start up will display a vette logo instead of a Pontiac one. No you won't loose the date in the DIC.

Sent from my Samsung Galaxy Note II

[jteske88]

Only thing that's diff that I want is the Bluetooth. Believe that is in the on star box thoug.

[sasquatch094]

Jteske88- I thought the strut tower wire was for Impalas only?!

[jteske88]

well o damn lol i could be wrong, but i dont remebr ever seeig a write up for a corvette nav in a impala

[jteske88]

yeah sorry about that, got to realize i have a real GXP nav from factory.
Here is what i found: The VSS is on the blue 56-pin connector at the PCM, VSS is on pin 22, dark
green wire, bottom left is pin 1, left of row 2 is pin 14, 8 pins over from
leftmost pin on the second row.

[jteske88]

with that info it should be easy to find,

[jteske88]

dont know if this will help at all

[sasquatch094]

i looked at that pin number and theres no wires going into pin 22. Im not sure if i was looking at the right 53pin connector inside the airbox, but it was the only blue on all the way to the left if you were looking straight down at it..