Stereo Balance problem (L R)

[Qwiz]

Update: The RCA Radio ground is ok. I was assured by the technician that everything should go just fine this time around.

 

We'll see.

[Qwiz]

Last update: Reinstalled the amp and it works as it should.

 

Conclusion: The package was handled in an unprofessional way by the Courier

 

or

 

it was already broken and the seller bet on the knowlendge lack of the customer, hoped to get away with it. In this case we would classify this company as a legit scammer.