Rear speakers are very low and the right side has even lower sound

Hi,

Is this an original equipment radio? Also, do you know if it is the base radio or the premium sound system?

In most cases, it is the radio itself or amplifier which is failing. In the base model system, the radio itself has an internal amp and the premium has a separate power amp, so I need to know which we are dealing with.

I attached 4 pics below. The first two show the wiring schematic for premium system, and the last two are for the base. What I am thinking is this. Once we determine which system you have, we may have to run new wires to the speakers from the unit to see if it is a wiring issue. If it isn't, then I suspect it is the radio or amp.

Let me know.

Take care,

Joe

See pics below.