On November 5, 2019 at 15:07, Duct Tape said...
that is false.
if you damage something by tapping into the wiring, then yes. but just tapping into or cutting wires will not void your warranty. there's a law on the books. magnusson moss or something.
When I did car audio/security, people had warranty claims voided, but this practice may have changed in the 20+ years since. I would argue that if someone is technically competent to do this without damaging anything, the warranty should remain intact, especially in light of the bad work that has been done by "factory trained" service personnel.
You got the name of the act right, but I didn't see anything about installing aftermarket devices, which was/would be considered 'modification'. I guess it depends on whether someone pissed in the service manager's Wheaties and if the connections look like they were made with a chainsaw and a roll of duct tape (no offense intended).[Link: en.wikipedia.org]