I have a 91 accord ex and was trying to replace the factory radio with pioneer mp3 player. used wiring kit for the car and correct installation kit. i forgot to disconnect neg batt cable tho. after installing pioneer didn't work.. checked fuse under hood and was good. re-installed factory radio and now it doesn't work. its not the bose setup.. just the 4 speaker ex setup. are there any other fuses other than the 7.5 fuse in the underhood fuse panel? would this possibly be an antitheft deal? i am a newbie.. second day owning this car. any help would be greatly appreciated.

 

check if ur battery isnt depleted

 

Backup radio/antenna fuse in the in car box