Improssible

Hello,
I have trouble with my speaker system. I want to diagnose where problem is. Firstly I have something like electrical noise in all speakers, then left front side stopped to work. Now whole front is not playing.
Other symptom is knocking in all speakers when Im pressing brake then accelerate. I have CCC Proffesional with Hi-Fi 10 speakers with amp for subwoofers in trunk.
Somebody told me that amp in HU is broken so I changed TDA7563, but it did not help. Problem still persist.
Now I want to check speakers maybe its short circuit.

I checked speakers impendance in below connector and there are my measures:

Pin 1,5 - Speaker RR+ and Speaker RR- impendance~3,5 Ohm OK
Pin 2,6 - Speaker FR+ and Speaker FR- impendance 0,05 Ohm short circuit?
Pin 3,7 - speaker FL+ and Speaker FL- impendance 0,05 Ohm short circuit?
Pin 4,8 - Speaker RL+ and Speaker RL- impendance ~3,5 Ohm OK

Could someone me they are right values or I really have two short circuits in front?
If yes I must check my head unit again for other bad element.

donpb

If you feel a speaker is shorted, then disconnect it and see if that fixes the issue.