Electrical help for carplay/android auto screen
I got a cheap device, after a more expensive stopped working, this in came with different type wiring and absolutely no instructions, it has a molded fuse with the red wire, it blue in colour, no markings of what spec the fuse is. It is the connected to a glass 3A fuse I believe. I'm confused if I should take it and replace an existing fuse. I've been asking chat gpt and its got me really confused. Is it ok to replace it with the 10A tail. Chat gpt says blue fuse means 15A and I shouldn't. And also I dont think I should use the 15A fan too and definitely not the 15A ICU. Previously I just jammed a wire under the tail fuse. Can someone please help me. I'm losing my mind lol.
Tldr,
How to wire it up the device. Can I just replace an existing fuse with this one.