My alternator is on its way out, it's starting to struggle with high demand charging. Was never an issue when my heated windscreen didn't work but now it does I'm getting the usual dimming when dipped headlights are on. Had my meter on it today and it's pushing out 12.9-13.1v instead of the usual 14.4v. Now my question is, has anyone fitted a slightly higher amp model to there mk6 instead of the higher 105a Oem model? Links as usual would be great if you have them.