You should check with Geek Squad at your Best Buy store in the car audio department to see about installation services.

No the SiriusXM Connect Satellite Radio Vehicle Tuner is not compatible with any 23/24 Honda vehicles. At this point in time the only product that is compatible with the Hybrid Accords is this product offered by VAIS Technology: https://vaistech.com/why-vais-satellite-radio-adapters/?gad_source=1&gclid=Cj0KCQjw4MSzBhC8ARIsAPFOuyW7wnmHwUvt2yizjRyZGZe2jZk9L3tiqGFnxIP7W3sd3cHdXpuXvpIaAquAEALw_wcB

No, the SXSD2 speaker dock only accepts the wired audio from either a Satellite radio docked into the speaker dock or from a 1/8in (3.5mm) stereo cable plugged into the Aux input on the speaker dock. If you have an older Samsung phone with wired headphones then it will accept this same 1/8 stereo cable. But the speaker dock does not have any Wi-Fi nor Bluetooth capabilities.

If you don't already have a SiriusXM dock n Play radio that fits the SXSD2 speaker dock then you might want to consider the GDI-SXTTR3 table top radio. This table top radio uses the same streaming credentials as your Samsung phone so you don't need an extra subscription. The table top radio is available here: https://www.bestbuy.com/site/siriusxm-wi-fi-sound-station-black/6454202.p?skuId=6454202

Yes, you can tune your Roady BT to one satellite station and it will receive that same station without interference all across the continental United States. However, if you drive under a bridge or long tunnel or along a narrow road with tall trees with heavy foliage or tall buildings between you and a view to the south where our satellites are you may experience some mutes. Specifically for your 94 Buick, unless you have upgraded the factory radio to newer radio that supports Bluetooth or Auxiliary Input. If you still have the original factory radio you will need an optional FM Direct Adapter Model #FMDA25 to connect the Roady BT's built in FM modulator to your Buick's FM radio. The FM Direct Adapter completely eliminates all interference from FM broadcasts so you can set your Roady BT and your Buick's FM radio to one station and use that same station all across the country. When you turn off your Roady BT the FM Direct Adapter will automatically restore normal FM reception to your Buick's FM radio.