No. You dont. That is only to keep the chimes function.
However if you want to keep the dic info.
You need the metra kit for the dic.
And i would recommend the AVH-P4100. I have it and loooooove it.
Check my gallery for pics.
2006 G6 GT
Mods so far: Black arrow overlays, Chrome recessed grilles, Blue LED license plate light, Blue LED reverse lights, Smoked tails, 20% Tint all around, Red led's for the interior, White led dome and map lights.
Sound System: 4 Infinity Kappa component speakers, 2 Amps (950w total) and 2 10" Kenwood KFC subwoofers, 7" touch screen Pioneer DVD
Performance: Mobile 1 oil, Mobile 1 oil filter