: 2005 cts, not using proper harness



aky
01-25-07, 07:04 PM
this is the one i need
http://peripheralelectronics.com/prodDetail.asp?strProductID=561&strCategory=OnStar%20/Data-Bus/CANBus&strSearch=

this is the one i got
http://www.installer-data.com/item/display_item.php?it=70-1784

Will having the cheapers one (second link) have any effect on my car... besides, not having chimes/onstar?