The cab of AJJ WAP-4 #22626. Note that the notch number display on the mu-p unit is now smaller in size (I hated those huge earlier displays!). The other irritant is that both cab heaters are on the same (Driver's) side in the newer WAP-4s, none on the Asst's side; that space is now occupied by a can of water for the wipers!!. Basin Bridge AC Loco Trip Shed, 2005-07-24. Gautam.