Filter Filters General Motors Remove All Filters Price Under $50 (5) Condition New (5) Brand Metra (5) Metra 40-GM20 Aftermarket Antenna to GM (General Motors) Radio with Mini Barb $10.95 Metra 40-GM30 GM (General Motors) Adapters with Barbed For CD $12.95 Metra 40-GM12 Aftermarket Radio to GM (General Motors) Antenna with Mini Barb $11.45 Metra 40-GM21 Aftermarket Antenna to GM (General Motors) Radio with Barbless $7.95 Metra 40-GM10 Aftermarket Radio to GM (General Motors) Antenna with Mini Barb $10.95