@larry5729 Somethins not right. I've heard some really good car stereos and they have never been close to a proper home system.
When nobody's home you should experiment with speaker and listening position placement. Move your speakers out at least 3 to 6ft from the back wall about 8 ft apart. Turn off the subs. Start by sitting in the middle about 3 ft from the front of the speakers. Does this sound better than your car? (If it doesn't then you may have an amplifier or speaker issue.) Move back 3ft. Did the sound get better? if so move back another 3 ft. If it didn't get better move your speakers further apart. and try again. When you get to a spot that it sounds good you can then toe the speakers in to increase the focus. Now you should have a sound stage and a full detailed sound. Now turn on one of your subs and adjust the volume to add some depth and then turn on the other sub and adjust it. If it's boomy move them out at least a foot from the wall.
So before everybody gets home you can readjust the speakers and the listening position to a compensate for life for everyone who doesn't have a dedicated sound room.
That's how us robots do it.