Quote Originally Posted by axelangel007
check your unit power diagrams

check fuse

try connecting all 12 volts +(ignition ,power antenna, power etc.. ,)all positive power polar wires to your + battery(directly),then ground - ..

do not include the positive speaker polar and negative.

no power, unit maybe defective

if unit turns on, you need to recheck all your connection,,,

no luck , bring your vehicle to the nearest car service stereo center
unit power diagrams & fuse are OK. i was able to plug the pioneer head unit to my friend's car & it worked fine. i was able to get it work the first time i connected it with just the battery, accessory, illumination, ground & rear speaker wires connected. its really weird why both units won't work anymore even though i did not mess with the wiring harness of the civic stereo. anymore ideas?