Quote, originally posted by Jahntassa »So a 2003 GT, Moonroof.. You're sure there's no little black box under the passenger seat, anywhere..?Nothing under the passenger seat, only things under are the seatbelt sensor cable and the air duct.

Quote, originally posted by ragingfish »You still haven't answered our question. Is this a new or used car?new car, got it 4/2003factory moonroof2zz-ge motor

I am kind of comfused, I have a moonroof, but nothing under the passenger seat, have 4 speakers and 2 tweeters, 6 discs indash head unit. I am so sure there is no amp in the car. Basically, I can just pop out the HU, and replace with a Vibe navi, and connect 2 wires on the 12 pin connector(in back o...

I checked the service manual too, but I didn't see any amp connection on the 04 model. Under the passenger seat is the cd-changer, and it does have some databus connection.http://manual.shulsmann.com/

I think 03 models doesn't have the 7 speakers amp system, maybe 04+ has this option.

I just went out to look at the car, there is no amp under the driver seat, only the 110v conventor. I am 100% sure there is no amp.I also took off the radio, saw the mounting points for the gps antenna, doesn't look like a hard install. The only thing now is to find someone who is willing to sell me...

Quote, originally posted by ragingfish »Part Numbers:88972143 - Display/Radio, Navigation ($2650)88972459 - Disc, Data ($250)88971503 - Bracket, Display/Radio, R ($10)88971504 - Bracket, Display/Radio, L ($10)88971502 - Antenna, Navigation ($528)Mike,I search many websites, I can't find that part# ...

First of all thanks to everyone. I do have a moonroof. So I guess its a M&T package.I don't really need a cd changer, I can always use a FM modulator for cd and xm. The main question I have, Is all GM unit the same or I have to get a Vibe NAV unit?can you provide the part#?Thanks.

for real, dam thats news to me.But is there a way to add a oem nav system?If yes, what parts do I need?

I mean 4 speakers and 2 front tweeters

I am new here, I am looking over ebay, only can find GM units for trucks.Does anyone know which one(part#) I need for a 2003 vibe? I don't have an amp, just the 6 speakers.