How do I find the fuse for the trailer lights on a 2004 chevy trailblazer?

I don't have the manuel. I was hoping it would have some sort of diagram like the one under the hood but it doesn't. Do you happen to have a stigmatic for the one under the back seat on the driver side? I don't have the manuel. I was hoping it would have some sort of diagram like the one under the hood but it doesn't. Do you happen to have a stigmatic for the one under the back seat on the driver side?

The fuses for trailer light are split between underhood and rear seat fuse boxes;

Underhood Fusebox;
#4 fuse - trailer back-up
#19 fuse - trailer elect. brakes
#32 fuse - trailer (?)
#51 fuse - Drvr side trailer turn
#52 fuse - Pass side trailer turn

Rear Seat Fusebox
#42 fuse - trailer parking light

Outside of the underhood fusebox there is a red wire with a loop terminal that is unconnected and tied back. This is for the trailer battery charging and would be connected to the stud bolt on the side of the fusebox when needed. The fuses for trailer light are split between underhood and rear seat fuse boxes; Underhood Fusebox; #4 fuse - trailer back-up #19 fuse - trailer elect. brakes #32 fuse - trailer (?) #51 fuse - Drvr side trailer turn #52 fuse - Pass side trailer turn Rear Seat Fusebox #42 fuse - trailer parking light Outside of the underhood fusebox there is a red wire with a loop terminal that is unconnected and tied back. This is for the trailer battery charging and would be connected to the stud bolt on the side of the fusebox when needed.