I recently had a song xplod deck installed in my '95 accent at Futureshop(it's like BestBuy). When they hooked everything up, there was a static noise coming from the front speakers then it went away after adjusting the balance to the back speakers. The guy who installed it said the fronts must've blown, so today I bought a set of 4" pioneers for the front and installed them and still no sound at all coming from the fronts. When the balance is even between the back and fronts, only sound is coming from the rears and when I adjust it to the front there is nothing. Any suggestions?