play something with alot of vocal.. k turn it to 16 volume or 18 volume and close the door..

set everything to +5
turn off your car and take out the key
now turn ur car into accessory or on
hit BASS down and up really quick so u go from +5 to +4 and back to +5 in less then a second..
then hit the treb down and up and see if u notice a difference

 

nope no difference. i tried it, my friend tried it, both of us say there is no difference in sound after the car is off and then turned on. i do have the later 05's picked up oct. delivered on oct.

 

I had the same problem, i had the dealer replace the HU, stil did not work. Had to take it a second time, and get it replaced again, i dont think its happening anymore but im just not shur anymore. Im gonna get a 4080 box and sub wiith a remote controller anyway so i said **** it im not taking my car back for nothing.

 

old thread I know...but has anyone found a solution to this? My HU used to be fine until my car hit 27k miles. Now it resets all the time. The HU still reads Bass +5 & Treble +2, but the sound is different after I turn the car back on.

the dealer tried replacing the HU and it did not help. I was going to have them replace the amp next.