Originally Posted by Signcutter21
wow that's a great help Mr White. What did you do for the xm antenna? Also were you albe to use the factory bt with the 140? Just got the dash kit for my '12 and still deciding what radio to put in it.
I had my head unit installed by Sound Sensations in Marietta, GA. I sat in the back seat, held a flashlight, and kept them company, trying to learn as much as I could. I'm a mechanical engineer, not an electrical engineer
; I freely admit my ignorance on the subject and would rather know it was done right than save a little money. I made judgement calls when needed - which steering wheel controls to sacrifice for the voice control, when and how to cut the plastic in the dash to make it fit, etc. - they did the work.
That being said, we had to use a Lexus antenna adapter for the HD [and XM] antenna (I believe). I can say that I do get HD radio, but I haven't tried to connect to Sirius XM radio. After the install, they checked to make sure that every aspect of the head unit was functional, so I'm assuming that the XM radio worked. I'm not sure I know what you mean by the "factory bt".
I searched TW and came across this thread, perhaps it will help: