I have original system
I would like to get better though because I have a fading out type problem. I think it is the advanced sound change mechanism (can't remember the actual name) but it downs the volume when ever the volume is up for some time. Very annoying when listening and just randomly the volume cuts down about 30-50%
I just have no time to swap out the system and I deal with it .
I guess that this advanced system takes in the decibel level of internal car cabinet and consering the exhaust decibels it may add and sum them which turns the volume down on the radio/system. I have no idea if this is correct but I assume it plays a role.
Cold weather the volume loses - guess the speakers are hard.
On a warm day, my system sounds like I am at a 5 star concert.
What experiences do you have?