Have any of you experienced or heard of dealer pushback when the Optima is installed? The dealer not wanting to work on your car, or explaining that the Optima was the source of all that is wrong in the world? Requiring the battery to be replaced with a Toyota battery, cables, and wiring harness before they could diagnose the codes? I just want to hear if any of you have experienced problems with any mods including the battery at the dealer or service center. Thanks!