Never been impressed with the stereo on the twingo so thought I would investigate futher. Listened out near the speakers etc seemed fine but then went near the tweeters nothing. I opted for the sound pack which states tweeters etc. So lifted the grill and nothing, no wiring etc but this did make me chuckle they fitted a dummy speaker case, why the r26r doesn't have this but the wiring is there.
I don't see why you would go to the trouble