Having Trouble with DEH-P5500MP
 

Hi guys, i am using this unit for last 2 years in my car, yesterday i just unplugged the harness from da back of pioneer deck ( as i was thinking of using this unit in another car, but decided not to) when i plugged the harness back in, deck is not getting contineous power.its kinda playing PIG-BOO with me.any ideas y this is happening ? help will be appreciated.
Thanks

Try this
 

Pioneer's have common problem with the conctor from the face plate to the unit.
Idea take an eraser and clen the conector on teh unit and the face plate then try it again. Also check the Constant (yellow) for continous power, and ignition (red) for power when the key is on. Using a tst light.
Hope it works.

If not come by my shop

Hitech Audio Video
905 458-6828
1625 Steeles Ave East
Brampton

Later

when you unplugged the radio, I hope you pulled the fuse first or undid you battery. If not, you might have shorted it out and blown the fuse. Check your factory radio fuse in the fuse panel, sometimes vehicles hide a second fuse under the hood. Both must be good or your deck wont work.
hope this helps