I currently have a OE style dash speaker in my truck that with a resistor I was able to get it to a total of 8 ohms to function as a external speaker for my CB.

I am now looking at installing a highliner headliner in my truck and don't need all four of the speaker mounts in the headliner.

I am thinking of using the two center most speakers for CB and just remove the single OE dash speaker I was using.

If I take two 4ohm Rockford speakers and wire them in series to obtain 8 ohms impedeance would there be any problems with this setup?

Im not sure if anyone has done anything like this before, most people I see use the purpose built external speakers. But I used a mono dash speaker in my truck for years with no problem but with this new headliner I cant hook up four more speakers to my oe radio.