This is a genuine Infinity SS 2004 crossover network wiring connector,
perfect for vintage speaker and horn drivers. Hard to find this vintage!
But should work for any speaker cabinet.

Measures approx 4.5" outside and would fit into a 3.5" port hole on your speaker,
working when removed, however electronics are never guaranteed (thanks  USPS)
Approximately 18" of red wire and 24" of blue wire, with factory female blade ends

Other numbers found on this unit are
J132-015309
9518L
015-6741/76215