How do I remove the drivers side windshield pillar post trim & the trim across the top of the windshield to run wires up to a radar detector

 

pull the pillar off, yank it

 

^ yup

 

IIRC you need to remove the weatherstripping first.

 

No, you don't. What weatherstripping? This is the interior A-pillar the OP is asking about.

 

Grip it and rip it

 

Got this out of How to remove headliner thread.




OP you will most likely need to drop the front of the headliner a tad to tuck the wire properly, at least I did.

 

Hey, Thanks all you guys. The last post was very helpful.

 

It's pretty easy to tuck the wiring under the front of the headliner. I did it with my fingertips when I installed a Homelink mirror on my base-level car. I didn't peel off the weatherstrip either, just had to pull the edge back over the A-pillar trim after clipping it back in place.