Hi all, would like to ask if you could help. my 97 MK1 came back from a weekend 'loan' with a friend. the stereo left ok but came back dead..... I have since swapped out the stereo from a sony to a pioneer. now these are my symptoms. doesn't work on 'ON' setting (before ignition) doesn't work when engine started Only ever works when .... Hitting 60 mph on the motorwway, when exiting the said motorway ,as soon as parked up and after said journey (again..perfect). This got me starting thinking that the Alternator was at fault.... measured and....... 12.77v not running with all i could give it, (Lights, Heater etc).... 13.95v Now these seem normal (phew) but what can I check next?