i have the Uniden XLT125, i can no longer adjust the Volume/Squelch by pressing down on the knob, could this be a faulty pot, if so does anyone know of a part no for a new one, i'm in the U.K.
I think you mean the UBC125XLT for a UK retailed scanner.
BC125AT = US
UBC125XLT = UK / Eupope
UBC126AT = Australia, New Zealand
Just to narrow the fault down I would suggest you use Scan125 Control Program which can adjust both Volume and Squelch. If this is working OK then that would point to a fault with the multifunction knob.