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i removed the CDA-9835 and right away in that same moment installed the stock HU..

dead.. no signal of life..

is there any way i can give current to it so i can see if the HU is dead or is a car problem?

 

i am assuming that you discontected your battery when intall it if not i would check the fuses you might have blown a fuse
also i believe that you have to have the stock deck security code it should of came with the owners manual i believe it a 4 number code

 
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My security code was 5 numbers.

 

wasnt sure if it was 4 or 5

 
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yes i got the card, but the stereo wont turn on.. so.. how can i enter it..

i will check the fuses, thanks!

any particular one that i should check, or just go crazy and check all ?

 

check all fuses

as for the code hit power button then enter the 5 digit code then you should have power
the stock deck should light up but wont work try putting a cd in and trying to eject it

 
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bah.. the cd doesnt even work, that was why i changed it in the first place hehehe..

 
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I would try to find the code first. If that doesn't work, call your local dealer and b**ch up a storm about them not giving you a code.

Worked like a charm for me...

 
Rep Power: 308

I think it is a power problem, could be constant or switched power that is missing, Also possible missing ground.

The radio code for my car is on a white sticker in the glovebox, (real security)

 
Rep Power: 0

the problem was a fuse..

Thanks! Radio working now..

that was a rush... the civic is sold hehehe..

 

good to hear