i installed D3 in my 07 altima 2.5sl couple of month ago...
problem i have is that none of the shops near me does not know how to tap into the vss. my navigation act stupid most of the time.. (wrong position and the its not accurate at all..) i spend $250 on the installation....i do not know anything about the car so i dont want to take it apart. i also installed the steering wheel control but it lags alot and i have to press it really hard... is it just me or the D3 is a garbage system?? can anyone help me?? do i have to take it to another shop?? i live in Queens NY.