So i am looking to get a G35c used as close to loaded as i can get around 29K however the dealers around me don't really have what I'm looking for, but one did say something intriguing. they told me they have an 06 w/ 30k miles for 30K but since it doesn't have the navi they said they would let me pick any after market GPS system under $500 and they would buy it and install it for free. what do you all think? keep looking for factory installed GPS or get an after market?