Find me an odd RCA input jack mount!

Sin___

Commendable
Aug 26, 2016
1
0
1,510
To start with, I don't know much about this stuff so bare with me.
Needing a new dual RCA input jack for an old (2000-2002) car amplifier. Simple job to solder to the pcb. My issue is I am unable to source a replacement, I've driven myself insane looking. What's required is a dual vertical jack with 4 solder pins instead of the ordinary 3 pins used on every other thing around. I'm left to assume these components are outdated and no longer used. Would anyone know where I could find one? If not possible, is there a way to change things so a normal jack can be used?

ADDED INFO: I'm in Australia so anything found would need to be able to be shipped here