Originally Posted by Technic
Is the OEM Homelink for the E9x 4 times
more expensive than the E46's?????
I am not sure for the e46, but you have to purchase a new mirror. The new mirror includes compass and homelink and a retrofit cable specific for post '06 e90 models without auto dimming and auto folding sideview mirrors.
It costs $500. I am just guessing installation is another $100. There is no coding involved but the DIY appears difficult. Wire splicing is necessary and it is not just plug and play; for my model at least.