I've recently bought a V70 (2000 model). I wanted to wire up my amp/woofer that I had in my previous car (the big kind that goes in the trunk of the car). Now I need to find my way through the firewall starting from the car battery (in front) to the trunk where the amp is located. In my previous car there was just a "pod" where all wiring went through the firewall and I just had to create an additional hole for the thick power cable - however there's no such thing (as far as I was able to inspect the firewall) in this v70. Anyone suggestions where I need to look? I don't want to drill it...