One of the experimental units arrived from China early. Faceplate looks exactly like the first one, however it doesn't have an amplifier built in to it, has an input jack (r, l and common) built in and seems to have been designed to connect to a separate amplifier. All functions work fine, however. Seems like it would be ok with headphones, but not running through speakers in a vehicle. 3 or possibly 4 more of these are coming...just can't predict when.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end