08-07-11, 11:37 PM
I have a 2005 STS with the YQ1 radio with CD and Bose speakers - all OE. I want to upgrade the radio to the NAV model. Will a YQ4 radio with nav work? If so, how much will it take to do it? Pics/advice requested. Although I would really like to stay GM stock, I am not 100% against an aftermarket solution. My concern is how it looks. If someone has a suggestion about an OEM looking aftermarket radio with NAV, please let me know and post pics if you have them. Thanks!!