Well you'd need +/_ & maybe some airbag wiring possibly, it wouldnt be to hard, but speaker wire isnt hard enough for it unless its uprated, lol, 10-15amp would be the one to use, into fusebox using a spare fuse location, so need a repair wire from audi for this & no doubt the negative/ground will be in footwell so its fairly simple, dont use an existing circuit giving the current/load these use when in use, cause you'll blow that existing circuit probably & lose other functions.