It is recommended prior to installing any automotive electronics that the negative battery terminal be disconnected. 1 being extremely easy and 5 being extremely difficult. Installation of this product would be rated a 2 out of 5.
Upgrade to factory GM ® European navigation today! Simply remove and replace the vehicle's HMI module. Then route the included GPS antenna ( if the vehicle doesn't already have GPS navigation).Our genuine brand new GM ® European navigation HMI modules feature a 90-day guarantee and a hassle-free return policy.