Installed a subwoofer and front speakers stopped working

[spitviper]

 I am new to car audio but I decided to install my own sub and amp last weekend. I picked up an amp install kit and hooked everything up it seemed to go pretty smoothly other then trying to get the head unit out of the dash which took for ever. Anyway, I finally got everything installed it looked and sounded good (I am not sure if the front speakers where working then or not cause i was just making sure the subwoofer worked) I put everything back together and decided to roll over to a friends house to show, I turned it on and the front speakers whernt working.. Idk what to start checking.. any ideas? Thanks in advance

[puttputt]

I put new speakers in mine. Maybe the wires are crossed or loose. Best to take it apart and check the connections.

[spitviper]

Today, i disconected the amp from the battery and the back of the stereo, I tried messing with the rear speakers, and I couldnt get the front speakers to work.. I dont really want to physically take the rear speakers out cause I dont really know how to access them, but I may try that sometime over week. any other ideas?