1995 SC300 maintained. Last year my 2 rear speakers went out on me. Crank up the volume and I get very low level out of the 2 rears. Sub and fronts are fine! I located the amp under my CD changer and purchased a new one, heard about possible water leakage dripping on the amp. Fuses were ok. By replacing the amp it still did not correct my problem. I'm thinking that the stock head unit has a Pre-Amp that is bad? or....is there another amp I do not know about? someone on the Lexus forum indicated that the speakers are bad....to me highly unlikely ! i don't crank them, if i did I would take a fuse...... so your thoughts to my next step....thanks
Thank you for using just answer.
Which audio system do you have in your car?