A4MHU

New to the world of Scooby ownership, had a MY01 WRX for about three weeks, and am having a strange problem with the indicators. Driving along the fuses for the indicators and hazards both blow. As the problem is completely intermittent - but reoccurring 3 time in the list week-the dealer cant trace a fault, any ideas gratefully welcome.
Also can anybody recommend a specialist tuning company in or around North Wiltshire, as the car misfires under heavy acceleration and occasionally when idling, not having had a Scooby before not sure if this is normal, and want to get it checked out.
Thanks

Mark