Rough distance to middle of tunnel from bcm

[pisco]

Being in Nebraska I plan to add seat heaters for cold spring and fall mornings. Can anyone tell me an approximate measurement to for my power and ground to exit the tunnel under the seats?

 

[JBINTX]

from firewall in front to:
front under seat 34"
rear under seat 51"
so, anywhere in between those dimensions.

 

[pisco]

Thanks a ton.
feels great to finally finish this harness.