2005 Peugeot 407 2.0 hdi coupe Won't start anymore

Peugeot 407 Problem
The Problem

Won't start anymore
Mar 1, 2017 (3 years ago)
Trying to fit a satnav model year 2006 , it doesn't fited.Trying to change wires position , something happens and couldn't start the car anymore.My old screen doesn't show nothing and car don't start.I checked all fuses and I found one broken.I changed it but still won't start.Please help me someway....What should I try else ?

Car details
Car: Peugeot 407
Variant: 2.0 hdi coupe
Model Year: 2005
Category: Electrics, ECU, Warnings & Lights

Recalls: Peugeot 407 Recalls
More: Peugeot 407 Problems
Replies and solutions
Fixes: 1,667
Mar 2, 2017 (3 years ago)
have you put the wires back to the original positon?
These cars have multiplexing so changing wires about without a wiring diagram can cause you lots of problems as you are finding.
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