My friend wants to hook up a amp and sub into his 03 gt, but doesnt wanna get rid of the 6 disc changer has any one wired up to the stock radio before? I did it on my g6 so i could prob do basically the same deal, but i need to know where i can tap into the accessory wire(anyone wanna let me know where that is???) Thanks

 

blue one thats cut off short. i believe its supposed to be for a power antenna.

 

It has the mach sound and I found a diagram for the remote turn on for the stock amp that was black w/ a pink stripe which worked for the radar detector so I'll prob tap into that for him when he gets his **** in, But ill look into the power antenna thanks.