I am installing a Pioneer AVH-4100NEX on my new Versa and a Sirius XM module
I was told to snake the Pioneer microphone under the headliner down the A Pillar to the dash
I was told to snake the Sirius XM antenna wire under the windshield weather strip to the A Pillar

question 1: Does that sound reasonable? It seems like an awful tight squeeze under the windshield weather strip.
question 2: The A Pillar is held on by little plastic clips. How do I remove them?
question 3: I know that the Steering Wheel Controls go through the Bluetooth Module. Do I hook up the ASWC-1 kit directly to the Bluetooth Module and let it auto detect?

Sorry to be asking such dumb questions. I am an Electronics Engineer but not too familiar with Nissan Electrical wiring.
I bought all the kits that Crutchfield suggested I buy. I bought the radio on Amazon. $100 cheaper.

The actual Nissan name for the plastic trim is "Garnish Assembly Post LH"