Need help with Ipod interface please

[vetteSUT]

Just pull the whole console apart in my 06 SUT, and started plug-in of upac-gmc2 (PAC unit). Very simple install, followed the directions...

and NOW the NAV/Radio headunit will not even turn on! So I unplugged the blue PAC box, disconnected the battery, but STILL nothing.... I am sooo pissed. I hope this didn't damage my NAV headunit!

Anyone have any advice? I will probably have to get someone from PAC on the horn tomorrow...