eatinpavement
+1y
Edited: 7/27/2007 6:45:13 PM by eatinpavement
Edited: 7/27/2007 6:38:05 PM by eatinpavement
you can use a PAC C2A-GM24 interface or Metra GMOS04 interface. if your not looking to spend lots of money, you can either tap the sub output behind the radio with a wire with rca jacks on the opposite end. you do not want to use a line level convertor at this point because the signal out of your radio is already a low line preamp output. otherwise if you tap after the amp or at any of the speaker wires, you will need a line output convertor to reduce the signal. if you are considering an aftermarket radio, you can bet on spending 100-150 dollars more than just the price of the radio for the correct module to retain onstar, bose, and chime and then about another 15-20 bucks for the dash kit (Metra 99-2003) and around 10 bucks for the antenna adapter (Metra 40GM10)