Where/How should i fit my amp?

[Wirral lad]

Hi All

Your advice would me much appreciated
There are a few jobs that i need to get around to.

One is to fit the amp as it is currently unfixed in the boot.

The previous owner had fitted a HK system found at the scrap pies

All wiring is done with one of swans DD units in too

I need to hide the wiring and fix the amp somewhere

Where do you guys have yours fitted
Mine is an aftermarket one not the original HK
Any pics and tips would be great

Also, where is the best place to get the connectors to the sub as these have broken- probably when the amp swings around in the boot currently

Thanks in advance

Neil