40-GM10

General Motors used a small factory antenna plug from 1988 through 2006, in both barbed and barbless versions, and neither one fits the antenna jack on an aftermarket radio. The Metra 40-GM10 accepts either style on the vehicle side and hands off a standard male antenna plug on the radio side, so one part number covers nearly two decades of Chevrolet, GMC, Buick, Pontiac, Oldsmobile, Cadillac and Saturn models. Nothing gets cut and the factory antenna keeps working exactly as it did, so AM and FM reception after the swap matches what the original radio pulled in. The connector housings are molded to grip the OEM plug without play, the terminals are hand-assembled to OEM tolerances so the center pin holds contact, and heat-resistant materials handle years of under-dash temperature cycling. Pre-stripped ends make the connection immediate. If you install radios in GM trucks, Silverado and Sierra pickups, Tahoe, Suburban, Camaro, Impala or S-10, this is the adapter that turns a fitment problem into a two-second plug-in. Lifetime warranty from Metra.