Problem is removal from steering column shrouds. What comes apart, and can switch be taken off, serviced, and replaced by retired ex. mechanic ? Which screws please, and can steering wheel remain in pos'n ? Other items, wiring, pump, and connections have checked out o.k.

Really, u should not know this much about hearing aids !! Me at the age of 93 only know the name & price of my hearing aid & even that might not be right because l got it at a car boot sale. l payed 93 guineas for it but my freind Theadore payed 40 guineas for his but he had to bargain with the man & even that came to the cruel task of pulling his nostrils up to look like a pig. The poor man; l think his name was Bumble yea Mr. Bumble !!! My little son Oliver , bless him he is only 59 & he is the dearest little boy u could ever meet..