I need help with identifying a resistor (R53) from a Kicker CXA600.5

I need help with identifying a resistor (R53) from a Kicker CXA600.5

I fix amps as a hobby and got this Kicker CXA600.5 for free and do believe this missing resistor is the problem.
I traced the remote circuit and it lead me to R53. If anyone has a schematic and willing to share, I will be so thankful.


Thanks
Jean

Screenshot 2024-03-11 224453.jpg