986 with CDR-210 - CD changer sound in RH only

[Zzorro]

I'm bringing a '98 986 back to life after a few hard years. It's been lots of fun so far.

One minor issue you all might have some insight into: I have the CDR-210 head unit c/w amp and 6 disc CD changer in the frunk. The sound from the In-dash radio and CD player work great. When I switch to the CD changer I only receive sound from the RH speakers (single channel).

In an attempt to fix the issue I have taken apart ALL connections and cleaned them with electronics cleaner and made sure they are all decent. This includes the back of the head unit, the back of the Amp in the frunk and the connections to the CD changer as well. I have played around with the balance setting and can confirm that I get no sound from the LH channel from the CD Changer.

Before I go looking for a cut wire behind the dash I figured I would ask if anyone experienced this issue or have any insight into what else I can look for let me know.

Thanks in advance for your input.