I keep finding connections in my vehicle that are not connected, from the previous owner I am assuming. However, most things seem to work.

How worried should I be? Is this a symptom of a huge bypassing problem in order to sell the vehicle? Maybe by one of the previous owners?

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79 300SD - $50 out of pocket purchase
03 Dodge Ram 3500 CTD
2003 VW Jetta TDI

Usually symptoms of a hacker. Just hook everything back up and see what you find.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200