Car Sterio help please

[94saturnsl1]

this is my situation. i have had a 1994 Saturn SL-1 for a long time now, i drive it well and i had put subs into the trunk and a sony xplod deck in the dash, i put it in by myself, everything was fine until it started turning off for some reason, as i drove my deck turned off and on, anyways i removed the deck and put a new one in ive done it to many other cars before but i try'd putting a new one in and i can only get the front right speaker working with any deck i try, i have a few old ones i try'd and i cant seem to get any other speaker to work but the front right one and my subs dont work anymore either. is this a wiring problem or possable a deck problem in all 4 of them? or could my speakers just stop working suddenly? my car was rarely driven its only got 145 000 kilometers on it. could someone please help?

[94sl2pxk]

Honestly, I do not know much about car stereos, I have installed a couple, but nothing very advance (woofers and what not) But if it were me and I had tried 4 different decks I would say that it is much more likley that it is a wiring problem. The likely-hood of 4 bad decks is very slim. I would take off all the extras, such as your amp and woofers and just attempt to get it working on the regular stereo system. You could always go talk to your friendly neighborhood car audio retailer for advice also.