Need help ID Marauder B-26 radio part

[daveT]

Martin Marauder TB-26C, serial number 41-35182 crashed November 3rd, 1944 in the Huron National Forest near Glennie Michigan. The crash site was recently rediscovered and explored. Found an interesting part in the debris. The part had a partial data plate on it with letters "SIG P" I'm thinking it said SIGNAL PLUG. The part contained wires and coil. I've attached photos of the part. I reviewed the Pilots manual for the B-26 and could not ID the part. I need help to ID this part.
DaveT

[Johnny Signor]

Try this site, b26.com
Good luck !
Johnny