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
