Running a power cable for sub/amp


Matty A4 TDi Sport
Hi, Just woundering if anyone knows the best place to get a power lead from the battery into the cabin?

Any help would be appreciated

Regards Matt


Active Member
Through the ECU cover is easiest, drops down into the drivers footwell. There's even a spare grommet on the main ECU boot you can use.

scott b

Active Member
VCDS Map User
i tried that way and gave up, some removed drivers side lower dash trim and went to the live buz bar


Active Member
Wow, it's a 10 minute job, what on earth were you doing?
The busbar is no good unless you have a pretty low power amp. Most sub amps will be pulling 30-40 amps, not a good idea on an existing spur with loads of other stuff running on it.