I have a kenwood excelon deck and amp, JL w1 subs, etc..but none of that really matters. here is my problem. i installed everything probably four months ago and it worked great. the last month or two, my left front door speaker wont play (about half the time, randomly) ONLY when my ipod is hooked up. that was not HUGE deal, but the last week it seems my deck has gotten a mind of its own. when the ipod is not plugged in, i only get sound out of my front speakers (no rear or subs). as soon as i plug the ipod in its great. CD does the same as radio....no rear or subs. this is very weird. it almost seems likei accidentally changed a setting on my deck, but i have double and triple checked. has anyone else noticed this?

ps i never turn my ipod off before disconnecting...just an FYI...i didnt think that would affect anything but just trying to give as much info as possible

 

figured it out. turns out it was a stupid setting i accidentally hit on the deck. thanks for the responses