Mdh_2.0
New member
- Joined
- Dec 12, 2025
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- Buick Ownership
- 2014 buick regal
So currently, im working on my 2014 regal T. And i put in my new 2.5hmi unit, my screen no longer displays. With the 2.5 or 2.0 nothing comes up. So im wondering, i used ai (only reason i do is for car parts basically) and it was saying tha due to there being no pre made splits, for the 2.5 i would have to splice the black wires from the black plug on the 2.5 to the, with one going back into itself and the other splitting to the blues black cable? Im honestly really confused on the matter and i just want carplay, i just want to not look down ever 20 seconds for maps. If there is any way yall could help lmk, i plan on getting the black plug to split to the blue this Saturday and then hopefully get it programmed this Monday.

