UK-POLOS.NET - THE VW Polo Forum

ive just installed a new Amp to my car and rewired - using a 4 gauge wire.

Anyways, i was driving yesterday night and when i stop in traffic, i noticed that my idling was bouncing up and down for about three times. Then it decided to settle down. When i keep the volume low of my stereo it still does it, but a bit less. it also did it with the stereo and amp completely off. But it settle a bit quicker than before i think?!

Ive also had this happening when i open the drivers side electric window and when i close. However this has been going on for ages though. Any1 know what might be wrong???

Think its common for it too do that mate, notice when you put your headlights on it takes a tiny bit of power away, same with the fans and stuff they use more petrol!

yeh, normal car electrics do make a bit of a effect. But with the stereo when i turn the volume up of the sub it seems to bounce up n down a bit too much i think!

Ive been told by my mate that a Power Cap would sort it..can any1 confirm..but what kind would i need, any ideas theres like FARAD 1 e.t.c. and i dont know which i would need?!??! amps 600w max and 200w rms with 4awg wiring.

cheers

All depends, some people don't rate power caps at all. I read on an audio forum that sometimes it puts more strain on the battery, because it has to keep re-charging the cap.