How often or when is programming or re-flashing a vehicle's Body Control Module (BCM) or Powertrain Control Module (PCM) done. Reason being is I want to know if it worth the trouble of switching back and forth between factory and aftermarket headunits when I take it to the dealer for the task to be done.
Should I just tell them that the fuse that powers the radio factory radio harness just needs to be pulled out ? Is it going to void my warranty If I did tell them about it but they still forgot to take the fuse out ? Just curious since they can always blame it on the aftremarket unit.
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