stock radio problem

[P8ntBalla]

i have the stock infinity double din size radio in my car and sometimes in fm mode the volume will not get very loud no matter how far i turn the knob. sometimes it will just get loud all of a sudden. but, if i put it in cd mode it will go up just fine. i confuse

 

[Nikita]

must be an internal problem. do your ears a favor and get a nice aftermarket hu. goodluck.

 

[P8ntBalla]

do me a favor and gimme the cash