One connector j2 that mates with ms27467t23b35sc with polarizing keyway; connector j1 mates with ms27467t23b5sb5sb; connector j3 mates with ddc-50s (p/n 153932-01); connector j4 mates with pl155ac-201 (p/n 168858-01) connector j5 mates with pl155acfl-201 (p/n 168858-02); c00ling air exhaust fan located at rear of unit; used on awds