Clarion is barely around - they do mostly OEM work for Nissan, Subaru(Hitachi connection), Ford and Honda. Fareucia bought them out - makes sense due to the Renault-Nissan-Mitsubishi Alliance.
By Audia = Alpine? Still around, BMW is their primary customer, not so much Honda as in the past. Pioneer also did some major Honda business, but now Toyota counts more. For OE audio, Panasonic rules the T1 OE. Samsung’s Harman also does major OE business. Pioneer, Clarion, Alpine, Visteon and Denso Ten(formerly Fujitsu Ten) make up the rest.