I am looking to add a B&O sub to my 2013 A3. Planning on using the same method using a quad lock extension so that I do not need to cut any wires. I already have an amp from my old beamer which does not require a remote turn on lead, Could anyone tell me how to get a power from the battery to the Amp. I'm going to have a look this weekend to see if the amp will fit under the passenger seat.
Any progress on this?
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