Thanks for the advise. I searched for some tweeters and found this:Please advise if this meets your "add on" "crossover" suggestions.It is 4-0hm and the new stereo I got specifies 4-ohm speakers. I was hoping your 4-ohm requirement could be waived?PIONEER TS-T110:7/8" PPTA d...

The wires appear to come off the regular speaker wires. Same colors too.So I am assuming they are tweeter wires. They are not connected to anything. There is another set of wires going to the power mirror.

Hi:Can I use, the tweeter wiring in the front door. (Blue and green wires going towards the mirrors). I want to make sure I can, before I buy the tweeters.I have base audio system with 4 speakers.