Only turn right, lol.
Dropping 3v is bad [ post #6 ] no matter where you are measuring it. Should not happen.
Not sure of the grounding system Chrys uses, but if that model uses a rag joint to connect the steering shaft to the box, there is often a metal link to bridge the RJ [ because the RG is an insulator ] to ground the horn button switch. Link maybe be broken. Also make sure the s/box mounting bolts are tight.