PAC AOEM-GM21A System Interface Kit (Add or Replace An Amplifier in Select GM/Chevrolet Vehicles)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>System interface that allows an additional after-market amplifier to be used</li><li>Adjustable 4-channel RCA outputs</li><li>Isolated transformer inputs and outputs</li><li>For GM/ Chevy vehicles with factory Bose audio system</li><li>System interface that allows an additional after-market amplifier to be used</li><li>Adjustable 4-channel RCA outputs</li><li>Isolated transformer inputs and outputs</li></ul></div><img src="http://ecx.images-amazon.com/images/I/413N2K-riEL.jpg" noproxy>