A bit of a background... My car audio (Kicker amp, 2 splits, 2 tweeters) stopped working for god knows what reason around 3-4 months ago. Having got my bike recently my car is becoming increasingly neglected and i have not yet got around to getting it fixed. However i was driving along yesterday and i heard a high pitch crackle which was occurring every few minutes. At the time i didn't realise but it was coming from the tweeters. Out of nowhere, the splits start working but with bass only, no treble whatsoever. I've never known a thing about car audio unfortunately, can anyone here shed some light on where i should be looking for a possible loose wire or a faulty terminal? I thought the whole system had gone to god, but with the intermittent crackling and now the bass coming out of the splits, im convinced something is loose. Anyone have any ideas? I've checked the amp and everything appears to be in place....i tried to get the head unit out however Holden has decided to make VS trim around it ****in impossible to get off. Thanks.