Why would my amplifier be bypassed? Wires cut

[Prstu]

Goes to show what happens when you don't compare cars before buying!

 

After being disappointed with the stereo in my l&k superb 14 I paid for a sub to be fitted. They fitted it and told me it's supposed to be an amplified system but someone has bypassed the amp.

 

Took a look and found the pic

 

Why would this be done?

 

How do I unf*CK it?

 

Guessing rejoin the wires and reset stereo to low level out?

 

Edited 26 November, 2019 by Prstu

[Dr Zoidberg]

At a guess the amp died and it was cheaper to bodge it that way.