I used large narrow piece of heater around the unit with a nylon zip tie
pulled tight.  Worked well.  You will likely need to pull the lighter to
see where this fits, but remove the glove box, do the contortion thing,
and you might be able to see how thin a  piece you need.

You can even cut the hose and fit it over without removing even the
wires, if you are skilled.
If  you need a piece of the hose, let me know and perhaps I can mail you
some, if I still have any. p-mail for that request though

John
81 West FOR SALE
87 Westy Weekender