Few problems i cant seem figure out.

[Oheggem]

Hi fellow Porsche owners.

I`ve searched but can`t seem to solve myself. Hope anyone of you can point me to the right direction.

Car: `79 930 black/black (sorry forgot my cam so no pictures yet)

Issues:

1. How do i remove the rear bumper? I need to change one of the bumperettes, and also i need to change turbo sleeve. The one at the turbo and can`t get that banana pipe up from the thin metal shroud.

2. Am i supposed to have a heater blower? I has automatic heater control but no fan on the left side engine bay. So how does the automatic heating work then?

3. Does anyone know where the two brown wires connect inside the automatic heater control box between the seats.

Any ideas on these? Thank you in advance

Oheggem