I have had my head unit in my car for over a year but today i realized that the tweeters in the front of the dash dont seem to be working. I figured that its just that the wireing harness didnt include wiring for them. Is my assumptions right? And if so How can it be fixed?

thanks


****i searched but all i found out is that they should be powered now that i have an aftermarket head unit or that they might be blown..any help?