Heated Seat Wiring Brainstorming

Planning out how I plan to install the wiring for my front heated seats have been referencing this post as I go (https://www.tacomaworld.com/threads/install-heated-seats-3rd-gen.546859/).

I have 4 wires that I need to wire up on each seat. Black (ground), Red Wire (Positive 15amp inline fuse), Red/Yellow (Ignition On), and Yellow(Switch Light).

Obviously Black is grounded

Yellow wires tapped together to the TAIL fuse(7.5A) per other thread so the switch lights turn on with truck lights.

Red/Yellow tapped together to ??? other thread said to a 7.5amp Washer fuse which mine is a 20amp. I also read some taped the 4wd fuse which I have a 10amp there. Thoughts?

Red Wire tapped to S/Roof (don't have a sunroof) and S/HTR. The only problem I think here is that I'm not sure I can install an add a fuse on two fuses directly next to each other.

Picture of my fuse cover https://ibb.co/D1MJvnw Can't figure out how to get the picture to embed in the post

 

I just did this same install. I actually connected both positives together to the sunroof fuse since it is a 20amp fuse and each side is 10amps. I also did the the red/yellow together in the washer fuse. I’m using a jumper harness off the auto high beam switch for the yellow illumination lead. Ground is to a bolt under the radio.

 

On my heated seats each seat has a 15 amp fuse so I'm not sure putting them together would work?? However I don't have a sunroof so I'd like to utilize that fuse still

 

In that case, I would not run them together to one fuse. How you noted would be best.