I have the 132TSI Comfortline R-Line and I don't think the speakers/system is that bad. So much so that I'm not going to change the headunit as it is too hard and costly, I am putting in a proper sub, thinking about changing the speakers over but not in a rush. If the sub makes good improvement I may not worry about it.

Paying someone to run the power cacble through the firewall though, couldn't figure it out!