15-10-2012, 10:15 PM
ill be putting a sub and amp in my estate in a few months time. Some people put the +ve through the accelerator cable on the drivers side but ive never been able to get it through there myself. I have always drilled a hole through the bulkhead passenger footwell. Basically if you look on the passenger floor there is a massive rubber grommet for the heater system. I drill about 1cm to the left of that. However you need to work out where it comes out on the engine side so you dont drill into aircon pipes etc!