360/430 's A/C and heater pipe routing

confused me for a long time, this shot is taken from under the RH seat area, shooting pointing to the front of car.
You can see there are 5 pipes going through the bulkhead. From left, let's name it pipe 1, 2, 3,4,5

I want to make sure I guessed it correctly. Please chime in.

So pipe 1 and 2 are going forward to coolant system, going backwards to the heater core inside the dash?
(because when I turn the heater on, it gets hot in a few seconds.)

Pipe 3 is made of rubber and is cold when A/C is on. So where does this go, forward and backwards?

Pipe 4 and 5, I guess are going forward to the a/c lines? Backwards to the evaporator inside the dash?

Since pipe 5 is wrapped , is it supposed to be cold when A/C is on? The wrap is for anti-water-condensation purposes?



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