Christopher.

Anybody have tips on how I find the part numbers for the ambient lights on the TLX Advance? I want to add them to my '18 TLX Tech. I spent some time looking on the Acura parts website, but, haven't found the part #2 yet - will keep looking.

max3lv6

That seems like a major project, might be impossible. The ambient pipe lighting in the advance model is integrated into specific parts and moldings, you'd have to replace each part. Also, have you confirmed the correct wiring harnesses are pre-installed? There is an ambient light switch in the glove box that would also need to be installed. I would suspect the Tech model is missing all of these.

The Front doors have pipe lighting in the armrest, item #19 and # 27: https://www.oemacuraparts.com/auto-p...or-lining-scat

The Rear doors have pipe lighting in the armrest, item # 13 and # 18: https://www.oemacuraparts.com/auto-p...or-lining-scat

The Driver's side has pipe lighting under the steering wheel, item # 7 and item #3: https://www.oemacuraparts.com/auto-p...iver-side-scat

The cup holder and satin trim on the center console have pipe lighting, Item # 8, #13, and #10: https://www.oemacuraparts.com/auto-p...t-console-scat

The passenger side has pipe lighting above the glove box, unable to determine item # though. https://www.oemacuraparts.com/auto-p...nger-side-scat

Hope this helps you make a decision.