Hello from Chicago!

So I had my 2016 CLA (Sept 2016) in at the service center to fix a strut squeaking noise. They gave me a C300 as a loaner and fell in love with it. So on Friday I inquired about changing to the C300 and I ended up going home with the C300 instead of the CLA. I love the ride so much better than the CLA and it just seems to be a solid vehicle overall.

Anyway, I took the C300 onto the expressway, I hit about 50 mph when all of a sudden I feel some rumbling coming from the front left tire. I thought it was the road at first but I changed lanes and even decided to get off and change directions on the expressway, I heard the sound again as I approached 50. I can sort of see the passenger chair shake and can feel the center console shake. So I am definitely disappointed now, but the car is going back into the service center this afternoon. Can't believe it's going back so soon! Just curious anyone know what it could be?

Also, is there a way to retrofit my stereo system to the Burmeister? Or a better sound system? I liked the stereo in the CLA with the surround and was surprised that the C300 didn't have it. I thought all MBs had the good stereo sound. Call me stupid for not checking.

Almost everything is possible, but it's going to cost you a LOT of money. It's cost prohibitive for those of us with a limited wallet.