I would recommend moving this post to the audio section. The people that frequent that area would know best. I didn't even now these cars had a factory stereo option that included an amp. I'm always learning something new here. If it was me, I would just bypass the amp and run new wires for the speakers in question but maybe there is a better way around it than that. Good luck.
Caprice 9C1: Hooker catback, Brian H. Performance computer tune, Hotchkis Swaybars, T56 Manual, Z28 Cluster, 4.10s, (Max Power: 254.13, Max torque: 289.41 Dyno done with auto and stock rear)
01 Camaro SS: Max Poxer: 320.73, Max torque: 334.54 - Sold
76 Camaro bone stock