Searched and didn't find anything about wiring both.

I'm trying to wire up a bottle heater and bottle opener in the hatch area and was wondering what others have done as far as wire guage for the wire from the battery to the relay?

Did you run the big stereo wire(4-8 guage) off a fused distribution block or 2 10-12 guage wires?

Did you run it under the car or through the interior?

I was thinking I could run one big 8 guage wire from the battery back to the hatch under the car alongside the nitrous line and then run a distribution block that splits into 2 ports and run the heater for one and the opener for the other. I don't know how each line would have it's own fuse though, and I'm sure the fuse needs to be at the battery? I would still have to run the ignition switched 12v wires through the interior though.

All of this wiring is killing me. Between the window switch and msd retard box, bottle heater and opener I need to buy wires on the spool.

Any ideas would be helpful.