Route to nat private address?

Hello,

I currently have an internal asa to isolate a segment of our network, I need to be able to reach the devices there but I am not sure how to route to the Natted IP. Network is like this

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*inside->**NAT->ASA->outside int 192.168.66.10 -> vlan 66 switch -> 192.168.66.1 ASAtoISP networks to connect to .66 192.168.24.0/24

192.168.173.5 - *inside192.168.66.12 - **NAT address

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I need the networks behind ASAtoISP ie 192.168.24.0/24 to be able to talk to the NAT ip 192.168.173.5. A device on the .66 vlan (192.168.66.50) can get to 192.168.66.12 but anything on the .24 cannot.

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Better diagram: https://imgur.com/a/JKzJeH6

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Any help is appreciated!