wires

I just got an 01 Jimmy 2dr and i am putting some subs in the back. Instead of me taking a day to find somewhere under the car or in the car to run and hide the wires, i was gonna ask you guys where you ran your power wire from battery to amp and rca from amp to Head Unit. On my old Explorer, there was an access hole at the trunk were i brought up the power wire and was also wondering if there was anything like that.

Basically it would be wise to run it through the hole in the firewall on the driver's side although its up to you.