Hi all, my radio in my duster changes volume level every time i turn the radio on. i adjust the radio to the correct sound level that is good for me , but when the radio is switched off and on again ( when i next get in the car) the volume is so low that i have to adjust it again. it is not dire, but very irritating , especially when i am in and out of the car all day. do all of yours do the same or am i missing something? or could it be back to the dealers again.