So what I have discovered is Yes it is possible and yes it is Super expensive
2-3 days $850 per day
Basically because there is no cable provisioning done all the cables from Old Lex need to be transferred to the new one including Amplifier.
It means that half of the car need to be taken apart such as seats upholstery and door covers and then put all together.
VERDICT NOT WORTH IT - will just stick with aftermarket GPS