DCGTP
New member
So, youre interested in putting factory nav in your GP? you like the factory compatible features with the HUD and steering wheel controls? well, this is the how to for you!
heres some things to know, the factory nav system REQUIRES and external amp. monsoon or otherwise. the factory nav was only an option for monsoon equipped models. youll need to get an antenna, a nav unit a nav dvd and a few feet of wire. you will need to have your nav unit unlocked at the dealer ship.
the Nav unit is the same model as the corvette C6, they ebay from 500 -1000 under that title...
the DVD is about 100 searched for as grand prix nav dvd
the antenna is about 30 to 50
the hardest parts of the install are getting the nav unit and getting the HUD to show directions but when its done its pretty great. so heres how,
same install process as any other radio.
remove the center console, key ring first, then the larger DIC housing and then the 3 center console pieces. once you have the radio out pop in the nav unit the connectors should just plug right in, make sure to connect all the wires; antenna, XM, and speaker outs. the antenna is the little grey square plug with only one wire. the XM set is the 12 wire connector set with the black plastic plug. the speaker outs is the larger grey plastic one. note there is still one open connection set on the back this is the voice command mic set. put your dash back together drive to your dealership and have them unlock the unit.
once the units unlocked open it up pop in your dvd and get ready to enjoy! but not yet the hardest part is yet to come. so HUD + NAV? yes please. heres where it gets fun youll be connecting the VSS to your NAV unit. where do you begin? well get yourself out that 6' or so of wire i used 20 gauge its thick but not too thick to bend into place for a pin connection on the back of the NAV.
remember that XM plug set in the back of the NAV? you're going to be connecting the VSS to that. specifics, the VSS end location on the XM plug is pin D. So you'll now need to take apart your dash again. repeat first section skipping swapping head units.
VSS end location on the XM plug is pin D.
You'll have to look on the back of that set of wires the housing is labeled A-F on one 1/2. I used plyers to bend my 20 gauge wire into shape (folded over) and tightened to fit into the pin D spot. from there i ran the wire behind the unit down the center console under the dash out the rubber door wire boot through the body pannel and out through the fender well opening next to the PCM. The VSS wire. so your pcm has 3 sockets, the VSS is on the blue J1 socket, its pin #22, the VSS is a GREEN wire. that is the second row away from the firewall, located 6 pins RIGHT of the #28 labeled on the socket. follow this green wire back a few inches and strip a small section to connect your wire from the cabin. there are 3 yes, THREE green wires on this blue J1 socket, so make sure you double check your green wire is the right green wire. once this is done just reassemble your center console, pop in some directions, calibrate your location and enjoy the airplane hostess like guided directions with HUD indications!
heres a pic of the NAV from behind the xm is the black plastic 12 pin on the right. from this view the D pin is the 4th from the right.
https://www.dropbox.com/s/alxejgg1tapb9uf/NAV rear.jpg
heres some things to know, the factory nav system REQUIRES and external amp. monsoon or otherwise. the factory nav was only an option for monsoon equipped models. youll need to get an antenna, a nav unit a nav dvd and a few feet of wire. you will need to have your nav unit unlocked at the dealer ship.
the Nav unit is the same model as the corvette C6, they ebay from 500 -1000 under that title...
the DVD is about 100 searched for as grand prix nav dvd
the antenna is about 30 to 50
the hardest parts of the install are getting the nav unit and getting the HUD to show directions but when its done its pretty great. so heres how,
same install process as any other radio.
remove the center console, key ring first, then the larger DIC housing and then the 3 center console pieces. once you have the radio out pop in the nav unit the connectors should just plug right in, make sure to connect all the wires; antenna, XM, and speaker outs. the antenna is the little grey square plug with only one wire. the XM set is the 12 wire connector set with the black plastic plug. the speaker outs is the larger grey plastic one. note there is still one open connection set on the back this is the voice command mic set. put your dash back together drive to your dealership and have them unlock the unit.
once the units unlocked open it up pop in your dvd and get ready to enjoy! but not yet the hardest part is yet to come. so HUD + NAV? yes please. heres where it gets fun youll be connecting the VSS to your NAV unit. where do you begin? well get yourself out that 6' or so of wire i used 20 gauge its thick but not too thick to bend into place for a pin connection on the back of the NAV.
remember that XM plug set in the back of the NAV? you're going to be connecting the VSS to that. specifics, the VSS end location on the XM plug is pin D. So you'll now need to take apart your dash again. repeat first section skipping swapping head units.
VSS end location on the XM plug is pin D.
You'll have to look on the back of that set of wires the housing is labeled A-F on one 1/2. I used plyers to bend my 20 gauge wire into shape (folded over) and tightened to fit into the pin D spot. from there i ran the wire behind the unit down the center console under the dash out the rubber door wire boot through the body pannel and out through the fender well opening next to the PCM. The VSS wire. so your pcm has 3 sockets, the VSS is on the blue J1 socket, its pin #22, the VSS is a GREEN wire. that is the second row away from the firewall, located 6 pins RIGHT of the #28 labeled on the socket. follow this green wire back a few inches and strip a small section to connect your wire from the cabin. there are 3 yes, THREE green wires on this blue J1 socket, so make sure you double check your green wire is the right green wire. once this is done just reassemble your center console, pop in some directions, calibrate your location and enjoy the airplane hostess like guided directions with HUD indications!
heres a pic of the NAV from behind the xm is the black plastic 12 pin on the right. from this view the D pin is the 4th from the right.
https://www.dropbox.com/s/alxejgg1tapb9uf/NAV rear.jpg
