I had/have an elusive problem as well. My symptoms include headlight/gauge flicker, radio cuts in and out, occasional clicks with turn-over. All of this happens at higher rpms in 2nd and 3rd gear only after start-up. After the car has been driven around, the problems dissipate. The alternator has been replaced twice by Subaru, as has the battery, clock module, clutch switch and a few associated items. The battery terminals are clean and the grounds are tight. So far they can't determine the problem.