[4herb2tas0tik]

hey kg i thought the same thing thats why i purchased oem sirius i too have the nav in my C. i wouldnt want it any other way then threw my nav. and it looks like i cant put antenna on dash because theres a steal pice that sits on bottom that i guess goes threw the roof and the screw goes from inside to the outside to hold the antenna in place so i guess iam gonna have to put it on the back of the roof the way they said..owell.. iam also gonna up grade my stereo with a woolfer but if it means i cant have nav system then ill leave the sound group2 alone dose sound pretty good imop.