My car (1994 ES300) was driven by an older lady, and i am pretty sure that she never used the cd changer. Now, when i put a cd in the changer and press the cd button it just says that it is open, even though it is clearly closed. After leaving the cd in for a few days, i try the cd button again, and it can recongnize what slot it is in, but then reads "error." I have no idea what to do.