Upper rear end panel inner panelling - see operation "Upper Rear End Panel Inner Panelling, Remove and Install" in group "C". Unscrew amplifier cover from upper rear end - 6 screws. Unscrew amplifier from cover - 4 screws (arrow). Release and detach wiring harness plug (2) from Bose amplifier (1). Remove Bose amplifier.
Install, Connect
Secure wiring harness plug, Bose amplifier to cover. Secure cover to upper rear end inner panelling.
Remove, Disconnect 
Install, Connect 