How do I find the direct power cable on a 1988 chevy k1500?

I am trying to install a dc power outlet and it says i need to connect to the direct power cable. How do I find it?

Answer:

The direct power cable runs from the battery to an access point usually on the drivers side fender well. There is also sometimes a shielded stud on the firewall near the center of the truck. Failing to find either of these, a connection to the battery positive terminal will work just as well

Run it to battery as others have said. Just be sure to put an inline fuse in line just in case wire shorts out or something. 20 amp max.

I dont know were the direct power is but there is a remote pw wire or the power comes on with the key , there is a pink wire with a black stripe in your fuse box under the dash that is remote power wire/

connect it to the battery

this why you should have change the fluid - ball checks in value body