I figure with all the HT experts here, someone can help me figure out this problem with my car stereo. My system consists of a Eclipse head unit, Soundstream 4 channel amp, Boston Acoustics separates up front and coaxial speakers in the rear. It was all professionally installed almost 4 years ago. Whenever I turn on the stereo, very little sound comes out of the left front speaker. I can use the balance and fader controls on the head unit to isolate the speaker. As I turn the volume up, I can hear faint sounds from the speaker, but it is muffled and many orders of magnitude quieter than it should be. If I keep turning up the volume, the speaker kicks in at full volume. From there, the speaker seems to keep working until I turn the car off, when we start over again. The only symptom that I notice after the speaker is working is that occasionally there is static in that speaker, even from clean sources. I have tried swapping the input cables into the amp, but I haven't been able to isolate the problem. Anyone have any ideas of where I should go from here?