Amazon.com: Logitech 980-000354 Z323 Speaker System : Electronics
Decided to mod the RR speakers on Thanksgiving Eve during building, as I had a set of Z323 Logitech that weren't being used. Figured out later the added gas pedal cover was
Amazon.com: Logitech Speaker System Z323 with Subwoofer
LOGITECH Z506 ORIGINAL REPLACEMENT POWER SUPPLY BOARD | eBay
Best Buy: Logitech Z323 Speaker System Black 980-000354