Help please?, Head unit Problem Options

[Aleksa]

Hi i installed a Sony Xplod head unit on my 95 celica sx and now only my rear right hand side speaker works. I bought an adapter for the celica and for the Xplod and it clicks perfectly together. I hooked up the antanna too. When i first installed it none of the speakers worked and then a couple of hours later i turned on the car and the rear right hand side works. The head unit works fine though, all the settings, mp3 playing, etc works fine except for when i turn it on it says "failure" on the Xplod head unit but then it plays music and radio fine, except for it only plays it through the rear right speaker. I'm not good when it comes to electrical stuff, especially around a car, so i was hopeing to get some helpful insight from some of u guys? any ideas on why it isn't working? thanks....

[bseaman_5]

First thing I would check is the wiring on the wire harness. Did you use any couplers or anything? Idk if that's what they're called for wiring but oh well? Or did you just twist em together and leave em in the open? If that's the case some wires could have touched together and that could make it not play out of certain speakers. . I'd just check the wiring first