Hyundai Repair: Stereo, xm satelite radio, phillips screws

Question
QUESTION: 2006 Sonata. I'm trying to hook my XM Satelite radio up. Two questions: 1- Where is the connection to the stereo antenna? Is it in the back where the glass antenna is or is it behind the stereo, in the dash? If it is behind the stereo, how do I get the stereo out. I do have a stock single disc player stereo.

ANSWER: There are three places where you can plug into the antenna cable: where it attaches to the radio, where the two feeder cables join behind the right front kick panel, and at the antenna module behind the right rear pillar trim.

To remove the radio:
1.  Open the passenter door.
2.  Open the glove box.
3.  Remove the two Phillips screws fastening the dash trim strip inside the glove box.  
4.  Pull the trim strip off.  This will require significant effort and care.  I'd recommend a small hook tool to grab behind the trim strip and pull out, gradually moving along the length of the strip.
5.  Remove the two Phillips screws holding the items to either side of the radio.  If I recall correctly, one is the hazard switch and the other is the passenger seat belt reminder.
6.  Unsnap and pull out the items beside the radio.
7.  Remove the six Phillips screws holding the radio in place and pull out the radio.

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QUESTION: Which location would be the easiest? What or where is the "right rear pillar trim"? Is that where a rear right passenger would be looking at if he was sitting in the seat and looking over his right shoulder to the rear.

Answer
Your right rear pillar is the support pillar on the passenger rear that attaches the roof to the body of the car.  The pillar trim is the plastic piece covering the inside of the pillar.  It's indeed located just about where you describe it.

The easiest places to access would be behind the kick panel or the pillar trim, since I believe removing each requires the removal of only one screw.  But it most cases, the antenna wire behind the pillar trim won't mate up with a standard installation kit-- you'll probably need an adaptor of some sort.

You should also consider where you'll be mounting the XM unit and how you'll need to run the wiring to each of these places.  None is particularly difficult to access.  In most cases, the one that involves running the least wire will be the easiest choice.