Motorjoy GTO-8672 car amp

Anyone know the value of this resistor?

It connects between the RCA shield ground and the non briding speaker terminals..

Im getting -13.82 volts on the rca shield ground
 

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I found the problem all 3 opamps were defective ..

I think someone hit the power wire on the RCa shield ground ..

Since I had to replace the following

3 opamps
The 220 ohm resistor
1 diode that is for the regulator circuit
And had to fix the burnt traces on the board that connect to the rca shield grounds