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Discussion Starter · #1 ·
this afternoon i was at my friend house installing his new pioneer headunit
(it's a DEH-P4500MP) and it does not want to work,i have the wiring harness,all the wires at the good place,it doesnt do a thing.When I put back the old clarion piece of crap it works,we were thinking the radio was shotted
but it works at the store ,what could it be ,btw its a 1994 nissan sentra

and the infinity reference serie are a big improvement over stock speakers

help me please i need help and fast
 

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i think with the 4500 you have to hold the power button(source) for a few seconds...it should start fine, if not then it is a fuse in the deck, or you have no ground, or possibly your constant power and power wire when you turn the key are mixed...find a wiring diagram on the net
 
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