I found the solution to all my blackening problems at Caswell Plating.
http://www.caswellplating.com/index.html
For the Mirror pieces on the 06 and the license plate holder chrome piece on the tire carrier and the 102” whip, ball&spring for ham HF & CB:
Scotch brite pad
Followed by Caswell Dupli-color Adhesion Promoter (CP-199)
Followed by black Plasti Dip Spray on coating from Caswell (PDIP11203)
For the Wheels:
Scotch brite pad
Followed by Adhesion Promoter (CP-199)
Followed by Caswell black VHT Polyurethane wheel paint (SP-183)
For the skid plate, rustable underbody areas and the Radio related copper braid underbody bonding straps:
Caswell Dupli-color Undercoating black quick drying (UC 103)
For the Exhaust pipe:
Caswell VHT High Temperature Coating spray flat black (SP-102)