i got the 1.2 16v dynamique, y reg.I have installed some ice, 800w amp etc. and a 1 farad cap.
got in it tonight and as i turn the wheel the lights dim quite a bit, Its pretty funny really. i have heard the original batteries aint all that good.
The lights dont dim with the beats to the music (prob thanks to the cap), I turned the stereo off and drove round for a bit, soon they stopped dimming.
New battery time? get alternator checked? wat do you think