Hi Mark/ guys,
I have bought these speakers http://www.ebay.co.uk/itm/Pioneer-TS-G1021i-10cm-4-inch-180Watt-Car-Speakers-Set-of-Two-Free-UK-Shipping-/400685381371?pt=UK_In_Car_Technology&hash=item5d4ab5b6fb

to update my Metallica speakers, I have noticed the volume has been reduced, just wanted to check if this is the right cap to remove you mentioned very early in the thread and solder the corresponding coloured wires to the positive and negative terminals of the speaker? image.jpg

Thanks again for taking all the time in detail for great sound upgrade.

Thanks Turbo, great idea

Thanks TB, even easier.

Did you manage to get the two pin adapter and use the service output for 240v to power your amp?

Another option is to cut the power cable inside cabinet, add a double adapter socket to the end that goes to the wall, put a plug on the other end of cut cable, plug it in and you still have a spare space for another device to be plugged in (all inside the machine). I know A friend who has done it successfully with most of his machines.
I am planning on doing the same trick