Garmin's automotive segment revenue has dropped from $2.5-billion in 2008, to $700-million in 2017. [1]
They've been able to largely make up for it with revenue from other sources, [2] (mostly outdoor/fitness) [3], but I'm sure that shift and innovation was driven by the event you mentioned.
[1]https://www.statista.com/statistics/217901/net-sales-in-the-...
[2]https://www.statista.com/statistics/217907/net-sales-of-garm...
[3] https://www.statista.com/statistics/217905/revenue-distribut...