Revert "Adding State variable for Pioneer Amp"

This reverts commit 86e9eb4d35eb77a2a4a86c0bf81bd0d110097b67.
Revert "Revert "Adding State variable for Pioneer Amp""

This reverts commit 9433529e9ad0c47bcc77ba72e36c6bb74e952ac3.
Revert 9c4dbe8..e088682

This rolls back to commit 9c4dbe814c3bd5cb9b99e28d2b14ecd286567ebc.