Isata 3 horn fuse rating/location

[xrpb11a]

I looked up all the fuse layouts from mercedes, 3500 sprinter.
Up to year 2019, they had a specific fuse for the horn (15A).
2020 onwards the horn fuse is nowhere to be found.
Need amp rating as looking to upgrade horn.
I think it must be under some generic name..
Any ideas?
thx. b.

[nvs4602]

If you can see the wires going to the horn, they should have the gauge of the wire printed on them. If it's 12awg use 20amp, 14awg use 15amp and 16awg use 10amp.

[xrpb11a]

Wires are covered up. Since I cannot verify actual max amperage on the horn circuit via Mercedes, decided to go with 6 amps of horns to stay in a reasonable power zone.
Ordered up these, with a wiring kit. Should be a 15 minute job. Sound is 100% better than stock.
https://www.piaa.com/store/p/392-Aut...330/400Hz.aspx