Radio Shack sells a fuse block that fits the bill. It's call a dual fuse block, cat #27-704.

radioshack.com

It has a single connection to the battery, and splits the power to two fused points. Car stero shops also sell fuse blocks with more that two power terminations, I've seen as many as four.

I used the same dual block in our truck. I ran #4 from the battery to underneath the passengar seat where I installed the block. One 40 amp fuse protects the lights, another 20 amp fuse protects the inverter. As an extra precaution I placed a 100 amp inline fuse on the #4 just off of the battery. If the DC power to the passengar compartment gets damaged insulation I would rather blow a fuse that's easy to reach than seriously drain the battery or cause a fire.

[ 09-01-2001: Message edited by: Accasbel ]