MaukaRunner,
This is a quote from my agent, "no increase in premium anticipated, however, the extras you put in will
most likely not be included in the settlement amount in the event of a
claim. regarding audio equipment, if it is stolen, you may run into a
problem because it is not factory installed."
Which means, you are on your own if aftermarket parts if installed. The rates shouldn't go up if these parts are installed.
Hope this helps.
Aloha's brudda