Speaker issue

i now only have one working speaker left in my car the front right speaker, I recently put an amp and subs in my car, but than my deck cut out at a volume of like 25, so i went and got my deck checked for proper wiring and the guy had to sauder in a new ground, everything worked fine subs and all, than it seemed like my back speakers started coming in and out, and now my front left speaker is gone to, could this be the wiring behind the deck has come undone? because today I changed the speaker in the front left and got the same results as the other speaker using a speaker outta my parts car and it actually came in for a bit and cut back out, any opinions would be appreciated

Sounds like a wiring issue to me. I will never let anyone install audio equipment for me again. I do all my own work now because I can do it better. All you have to do is match the wires (they all are the same color) so I'd go back and check and make sure you have all the wires connected properly. Also if the person that installed the deck for you did not solder the wires, you should go back and do that. It holds up much better. Do your subs have the same problem as the other speakers? Also check and make sure you have a good ground, or try grounding it some place else. Hope this helps out.

The wiring was done at a local sound shop but the ground is good now my cd player no longer cuts out, my subs have no issue, but they dont connect to the deck the same way, they plug right into the back rather than being wired up to it, and like i said the only speaker left working is the front right and subs of course