A:AnswerMine's being installed on the 6th in a 2000 Trans Am. I had to buy a trim kit from Amazon and it fits 1993 thru 2002. So I guess it depends on how similar are Corvette and Trans Am. This is the 2nd one of these we've bought. The installer at our Best Buy in Casper, Wy is the best (no pun intended) and helped in the purchasing of all the components needed. The other vehicle is a 2008 F150
A:AnswerI just had this radio installed in my 2012 toyota tacoma. There were 2 additional items I had to purchase for it to fit in the dash, and to work with my steering wheel controls:
Maestro - Universal Analog Steering Wheel Interface - Black
Metra - Installation Kit for Most 2012 and Later Toyota Tacoma Vehicles - Black
If you have space for a double din radio, I'm sure they will be able to order what is compatible with your buick.
A:AnswerAlthough I am not totally sure, I believe you can update the maps via a sd memory card. To be sure call Garmin who has wonderful customer service at 1 844 892 4680