I never knew this existed. Thanks @sixto for finding this stuff!
haterade.substack.com
It has a CA Prop 65 warning, so it must be good stuff:
DESCRIPTION
Rodent tape is a deterrent for critters that like to chew vehicle wiring. Wrap any trouble spots to prevent any future wire harness issues. The tape is treated with capsaicin (active component in chili peppers). When wrapping the harness it is recommended to use the half-wrapping method. Each time you wrap the tape around the harness overlap the previous layer by half the width of the tape. One roll = ~65 feet of tape.




I Tasted Honda's Spicy Rodent-Repelling Tape
And I will do it again unless someone stops me.

It has a CA Prop 65 warning, so it must be good stuff:
DESCRIPTION
Rodent tape is a deterrent for critters that like to chew vehicle wiring. Wrap any trouble spots to prevent any future wire harness issues. The tape is treated with capsaicin (active component in chili peppers). When wrapping the harness it is recommended to use the half-wrapping method. Each time you wrap the tape around the harness overlap the previous layer by half the width of the tape. One roll = ~65 feet of tape.

