So to add to my 92 I bought an 03... I've wanted one for quite sometime. So on the test drive when the owner was showing off the bose audio the subwoofer was hitting pretty good.

Now... it's different. If I listen to the radio at low volume you can hear the sub. You turn it up the bass of the front door speakers take over. Not bad for bose 6x9 (though the 6x9 in my g50 hits harder but I digress).
If the volume is at a decently loud rate for like 20 minutes then the subwoofer can actually be heard.

Is the amp going out or the sub is wearing out?

T.i.a.