Clean 12v switched source that is hot cranking and running

OP check this out a time delay relay, made by Hella. Summit is the cheapest I've seen at a little over 40 bucks

page 57 in the Hella catalog

https://www.hella.com/hella-us/assets/media/HINC_Electrics_Catalog.pdf

HELLA 996152131 12V "delay on release"


Found this helpful article:

12v Delayed turn-off or turn-off (howto)

If that article disappears, I've taken the liberty of stealing it:

(Due to the **** software it only took me 5 tries to get the photos in correct order I finally had to upload them one at a time)

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