[Ulsmak]

What is best carsystem or bimmerretofit?

I have done 8 eNBT setups and redone 2 setups throughout the years. I have never once had a carystsems/custom retrofit garage adapter fail on me. The two redone setups originally had bimmerretrofit adapters that failed and I replaced the adapter and harness with one from car systems.

That said for being such a relatively expensive product the car systems documentation about the adapter and the retrofit itself needs improvement. For example it took me over a year to figure out the volume spike issue was caused by not grounding the faceplate to one of the two bolts that hold the dash in. I think it was the third or forth time I reached out to them about the issue when the support was "oh year you need to ground the faceplate" when there was no mention of that in the manual.

I also hate how I have to call "my guy" to purchase anything from them instead of going right to their website to purchase stuff.