Audiophile Grade RCA Input Suggestions?

Here are the cheap-o versions that would work, and be equivalent to the Trichord ones. 

https://www.amazon.com/uxcell-Position-Stereo-Female-Connector/dp/B013SYV9S6

And just a heads up, the Cardas ones won't fit the Dino PCB, as it has doubled-up ground and signal pins. The two-way terminal component used on this board has 3 prongs only (L, R, and a shared G).

I performed the test out of circuit as well, to make sure no other parts of the circuit were messing with my reading 

Good suggestions on Parts Connexion! Unfortunately they don't have any two-way RCA inputs. 

Also, the input component needs front-facing screw holes like the originals, as the back of the chassis is secured by screws that go into the component. 

This image shows what they basically look like:
https://images-na.ssl-images-amazon.com/images/I/61hyXJZcoTL._AC_SL1100_.jpg

Cardas does not make a two-way RCA component with 3 leads. Theirs are doubled up, as each signal path and ground connection has its own lead (a better design than what I’m looking for, but won’t fit into the printed circuit board I’m working on.)

Parts Express was also a no-go. 
Also, if anyone missed it, see my link above for an example of the specific form factor I need. 

Doug,

I used a multimeter across the ground and signal connections on the input component to verify that there is an internal short. 

I also compared the reading to the functional RCA jack to verify what the readings should be. 

Thanks for the suggestions, all!

I dropped in the cheap replacements, which really seem like the same OEM components that were in there. 

I also upgraded the opamp chips from SMS2019 to THAT1510, which turned out to be a very nice mod for the tightness and clarity of the bass.

SSM2019*