Aftermarket Stereo Help

[Gazanfer Smith]

I recently installed an aftermarket stereo it worked well for one day then i had to pull it back out to rewire one cable i missed out(rear amp cable) and then when i put it back in, it no longer works.
I have tried reverting back to using the Head Concert(Original Stereo) but even that is no longer powering up.
Does anyone have any suggestions?

Thanks.

 

[LEE69]

Checked the fuse at the end of the dash?

 

[s5joe]

fuse is the first thing to check

 

[Gazanfer Smith]

I have bought a fuse checker from halfords and checked both the fuse on the stereo and the one connected to the ignition feed, they are both fine in working order.