The sound system? No. I plug in my phone to play music if needed. It is a good sound system without the upgrade. The radio in my older trad was ok but road/wind noise tended to drown it. The plys Four sound is far better..
More bling? No. Not even spotlamps! The headlights are so much better than on the old car that they would be expensive ornaments!
I would agree regarding both of these.