COBRA 2000GTL grounded plug question

[Crambone]

Now that I have my 2000GTL working properly I would like to install a 3 prong grounded plug. My question is were should i place the ground wire the radio? Most I just terminate to the chassis but Im not sure about the 2000GTL.

 

[Old_Crow]

Watch for ground loops! System should have common ground bar and radio, amps, switches, meters, etc should have short braided wire to a ground bus which leads outside to ground bar. Refer to Heil sound to explain deeper. Good luck.